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1. The Optical Corrector for the Dark Energy Spectroscopic Instrument

Author

Miller, Timothy N., Doel, Peter, Gutierrez, Gaston, Besuner, Robert, Brooks, David, Gallo, Giuseppe, Heetderks, Henry, Jelinsky, Patrick, Kent, Stephen M., Lampton, Michael, Levi, Michael, Liang, Ming, Meisner, Aaron, Sholl, Michael J., Silber, Joseph Harry, Sprayberry, David, Aguilar, Jessica Nicole, de la Macorra, Axel, Eisenstein, Daniel, Fanning, Kevin, Font-Ribera, Andreu, Gaztanaga, Enrique, Gontcho, Satya Gontcho A, Honscheid, Klaus, Jimenez, Jorge, Joyce, Dick, Kehoe, Robert, Kisner, Theodore, Kremin, Anthony, Landriau, Martin, Guillou, Laurent Le, Magneville, Christophe, Martini, Paul, Miquel, Ramon, Moustakas, John, Nie, Jundan, Percival, Will, Poppett, Claire, Prada, Francisco, Rossi, Graziano, Schlegel, David, Schubnell, Michael, Seo, Hee-Jong, Sharples, Ray, Tarle, Gregory, Vargas-Magana, Mariana, and Zhou, Zhimin

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The Dark Energy Spectroscopic Instrument (DESI) is currently measuring the spectra of 40\,million galaxies and quasars, the largest such survey ever made to probe the nature of cosmological dark energy. The 4-meter Mayall telescope at Kitt Peak National Observatory has been adapted for DESI, including the construction of a 3.2-degree diameter prime focus corrector that focuses astronomical light onto a 0.8-meter diameter focal surface with excellent image quality over the DESI bandpass of 360-980nm. The wide-field corrector includes six lenses, as large as 1.1-meters in diameter and as heavy as 237\,kilograms, including two counter-rotating wedged lenses that correct for atmospheric dispersion over Zenith angles from 0 to 60 degrees. The lenses, cells, and barrel assembly all meet precise alignment tolerances on the order of tens of microns. The barrel alignment is maintained throughout a range of observing angles and temperature excursions in the Mayall dome by use of a hexapod, which is itself supported by a new cage, ring, and truss structure. In this paper we describe the design, fabrication, and performance of the new corrector and associated structure, focusing on how they meet DESI requirements. In particular we describe the prescription and specifications of the lenses, design choices and error budgeting of the barrel assembly, stray light mitigations, and integration and test at the Mayall telescope. We conclude with some validation highlights that demonstrate the successful corrector on-sky performance, and list some lessons learned during the multi-year fabrication phase., Comment: 68 pages, 56 figures, 22 tables. Submitted to the Astronomical Journal

Published
2023

2. The MegaMapper: A Stage-5 Spectroscopic Instrument Concept for the Study of Inflation and Dark Energy

Author

Schlegel, David J., Kollmeier, Juna A., Aldering, Greg, Bailey, Stephen, Baltay, Charles, Bebek, Christopher, BenZvi, Segev, Besuner, Robert, Blanc, Guillermo, Bolton, Adam S., Bonaca, Ana, Bouri, Mohamed, Brooks, David, Buckley-Geer, Elizabeth, Cai, Zheng, Crane, Jeffrey, Demina, Regina, DeRose, Joseph, Dey, Arjun, Doel, Peter, Fan, Xiaohui, Ferraro, Simone, Finkbeiner, Douglas, Font-Ribera, Andreu, Gontcho, Satya Gontcho A, Green, Daniel, Gutierrez, Gaston, Guy, Julien, Heetderks, Henry, Huterer, Dragan, Infante, Leopoldo, Jelinsky, Patrick, Karagiannis, Dionysios, Kent, Stephen M., Kim, Alex G., Kneib, Jean-Paul, Kremin, Anthony, Kronig, Luzius, Konidaris, Nick, Lahav, Ofer, Lampton, Michael L., Landriau, Martin, Lang, Dustin, Leauthaud, Alexie, Levi, Michael E., Liguori, Michele, Linder, Eric V., Magneville, Christophe, Martini, Paul, Mateo, Mario, McDonald, Patrick, Miller, Christopher J., Moustakas, John, Myers, Adam D., Mulchaey, John, Newman, Jeffrey A., Nugent, Peter E., Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Piro, Antonella Palmese Anthony L., Poppett, Claire, Prochaska, Jason X., Pullen, Anthony R., Rabinowitz, David, Raichoor, Anand, Ramirez, Solange, Rix, Hans-Walter, Ross, Ashley J., Samushia, Lado, Schaan, Emmanuel, Schubnell, Michael, Seljak, Uros, Seo, Hee-Jong, Shectman, Stephen A., Schlafly, Edward F., Silber, Joseph, Simon, Joshua D., Slepian, Zachary, Slosar, Anže, Soares-Santos, Marcelle, Tarlé, Greg, Thompson, Ian, Valluri, Monica, Wechsler, Risa H., White, Martin, Wilson, Michael J., Yèche, Christophe, Zaritsky, Dennis, and Zhou, Rongpu

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

In this white paper, we present the MegaMapper concept. The MegaMapper is a proposed ground-based experiment to measure Inflation parameters and Dark Energy from galaxy redshifts at $2

Published
2022

3. The Robotic Multi-Object Focal Plane System of the Dark Energy Spectroscopic Instrument (DESI)

Author

Silber, Joseph Harry, Fagrelius, Parker, Fanning, Kevin, Schubnell, Michael, Aguilar, Jessica Nicole, Ahlen, Steven, Ameel, Jon, Ballester, Otger, Baltay, Charles, Bebek, Chris, Beard, Dominic Benton, Besuner, Robert, Cardiel-Sas, Laia, Casas, Ricard, Castander, Francisco Javier, Claybaugh, Todd, Dobson, Carl, Duan, Yutong, Dunlop, Patrick, Edelstein, Jerry, Emmet, William T., Elliott, Ann, Evatt, Matthew, Gershkovich, Irena, Guy, Julien, Harris, Stu, Heetderks, Henry, Heetderks, Ian, Honscheid, Klaus, Illa, Jose Maria, Jelinsky, Patrick, Jelinsky, Sharon R., Jimenez, Jorge, Karcher, Armin, Kent, Stephen, Kirkby, David, Kneib, Jean-Paul, Lambert, Andrew, Lampton, Mike, Leitner, Daniela, Levi, Michael, McCauley, Jeremy, Meisner, Aaron, Miller, Timothy N., Miquel, Ramon, Mundet, Juliá, Poppett, Claire, Rabinowitz, David, Reil, Kevin, Roman, David, Schlegel, David, Serrano, Santiago, Van Shourt, William, Sprayberry, David, Tarlé, Gregory, Tie, Suk Sien, Weaverdyck, Curtis, Zhang, Kai, Azzaro, Marco, Bailey, Stephen, Becerril, Santiago, Blackwell, Tami, Bouri, Mohamed, Brooks, David, Buckley-Geer, Elizabeth, Castro, Jose Peñate, Derwent, Mark, Dey, Arjun, Dhungana, Govinda, Doel, Peter, Eisenstein, Daniel J., Fahim, Nasib, Garcia-Bellido, Juan, Gaztañaga, Enrique, Gontcho, Satya Gontcho A, Gutierrez, Gaston, Hörler, Philipp, Kehoe, Robert, Kisner, Theodore, Kremin, Anthony, Kronig, Luzius, Landriau, Martin, Guillou, Laurent Le, Martini, Paul, Moustakas, John, Palanque-Delabrouille, Nathalie, Peng, Xiyan, Percival, Will, Prada, Francisco, Prieto, Carlos Allende, de Rivera, Guillermo Gonzalez, Sanchez, Eusebio, Sanchez, Justo, Sharples, Ray, Soares-Santos, Marcelle, Schlafly, Edward, Weaver, Benjamin Alan, Zhou, Zhimin, Zhu, Yaling, and Zou, Hu

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

A system of 5,020 robotic fiber positioners was installed in 2019 on the Mayall Telescope, at Kitt Peak National Observatory. The robots automatically re-target their optical fibers every 10 - 20 minutes, each to a precision of several microns, with a reconfiguration time less than 2 minutes. Over the next five years, they will enable the newly-constructed Dark Energy Spectroscopic Instrument (DESI) to measure the spectra of 35 million galaxies and quasars. DESI will produce the largest 3D map of the universe to date and measure the expansion history of the cosmos. In addition to the 5,020 robotic positioners and optical fibers, DESI's Focal Plane System includes 6 guide cameras, 4 wavefront cameras, 123 fiducial point sources, and a metrology camera mounted at the primary mirror. The system also includes associated structural, thermal, and electrical systems. In all, it contains over 675,000 individual parts. We discuss the design, construction, quality control, and integration of all these components. We include a summary of the key requirements, the review and acceptance process, on-sky validations of requirements, and lessons learned for future multi-object, fiber-fed spectrographs., Comment: 51 pages, 41 figures

Published
2022
Full Text
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4. Astro2020 APC White Paper: The MegaMapper: a z > 2 spectroscopic instrument for the study of Inflation and Dark Energy

Author

Schlegel, David J., Kollmeier, Juna A., Aldering, Greg, Bailey, Stephen, Baltay, Charles, Bebek, Christopher, BenZvi, Segev, Besuner, Robert, Blanc, Guillermo, Bolton, Adam S., Bouri, Mohamed, Brooks, David, Buckley-Geer, Elizabeth, Cai, Zheng, Crane, Jeffrey, Dey, Arjun, Doel, Peter, Fan, Xiaohui, Ferraro, Simone, Font-Ribera, Andreu, Gutierrez, Gaston, Guy, Julien, Heetderks, Henry, Huterer, Dragan, Infante, Leopoldo, Jelinsky, Patrick, Johns, Matthew, Karagiannis, Dionysios, Kent, Stephen M., Kim, Alex G., Kneib, Jean-Paul, Kronig, Luzius, Konidaris, Nick, Lahav, Ofer, Lampton, Michael L., Lang, Dustin, Leauthaud, Alexie, Liguori, Michele, Linder, Eric V., Magneville, Christophe, Martini, Paul, Mateo, Mario, McDonald, Patrick, Miller, Christopher J., Moustakas, John, Myers, Adam D., Mulchaey, John, Newman, Jeffrey A., Nugent, Peter E., Palanque-Delabrouille, Nathalie, Padmanabhan, Nikhil, Piro, Anthony L., Poppett, Claire, Prochaska, Jason X., Pullen, Anthony R., Rabinowitz, David, Ramirez, Solange, Rix, Hans-Walter, Ross, Ashley J., Samushia, Lado, Schaan, Emmanuel, Schubnell, Michael, Seljak, Uros, Seo, Hee-Jong, Shectman, Stephen A., Silber, Joseph, Simon, Joshua D., Slepian, Zachary, Soares-Santos, Marcelle, Tarle, Greg, Thompson, Ian, Valluri, Monica, Wechsler, Risa H., White, Martin, Wilson, Michael J., Yeche, Christophe, and Zaritsky, Dennis

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

MegaMapper is a proposed ground-based experiment to measure Inflation parameters and Dark Energy from galaxy redshifts at 2

Published
2019

5. Dark Energy Spectroscopic Instrument (DESI) Fiber Positioner Production

Author

Leitner, Daniela, Aguilar, Jessica, Ameel, Jon, Besuner, Robert, Claybaugh, Todd, Heetderks, Henry, Schubnell, Michael, Kneib, Jean-Paul, Silber, Joseph, Tarlé, Gregory, Weaverdyck, Curtis, and Zhang, Kai

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The Dark Energy Spectroscopic Instrument (DESI) is under construction to measure the expansion history of the Universe using the Baryon Acoustic Oscillation technique. The spectra of 35 million galaxies and quasars over 14000 sq deg will be measured during the life of the experiment. A new prime focus corrector for the KPNO Mayall telescope will deliver light to 5000 fiber optic positioners. The fibers in turn feed ten broad-band spectrographs. We will describe the production and manufacturing processes developed for the 5000 fiber positioner robots mounted on the focal plane of the Mayall telescope., Comment: SPIE 2018

Published
2018

6. Dark Energy Spectroscopic Instrument (DESI) Fiber Positioner Thermal and Wind Disturbance Test

Author

Zhang, Kai, Silber, Joseph H., Heetderks, Henry D., Leitner, Daniela, Schubnell, Michael, Levi, Michael, Wang, Gradey, Fanning, Kevin, Fagrelius, Parker, Dobson, Carl, and Aguilar, Jessica

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The Dark Energy Spectroscopic Instrument (DESI) is under construction to measure the expansion history of the Universe using the Baryon Acoustic Oscillation technique. The spectra of 35 million galaxies and quasars over 14000 sq deg will be measured during the life of the experiment. A new prime focus corrector for the KPNO Mayall telescope will deliver light to 5000 fiber optic positioners. The fibers in turn feed ten broad-band spectrographs. To achieve this goal, it is crucial to guarantee that fiber positioners work properly under the extremes of potential operating conditions, including the full range of temperatures, high speed wind disturbance etc. Thermal testing provides valuable insight into the functionality of the fiber positioners that can be used to help mitigate poor performance at extreme temperatures and wind disturbance test provide guidance to design of ventilation system. Here, we describe the thermal and wind disturbance tests for DESI fiber positioners and how the test results helped improve the robustness of the positioners., Comment: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Published
2018

7. Fabrication of the DESI Corrector Lenses

Author

Miller, Timothy N., Besuner, Robert W., Levi, Michael E., Lampton, Michael, Jelinsky, Patrick, Heetderks, Henry, Schlegel, David J., Edelstein, Jerry, Doel, Peter, Brooks, David, Kent, Stephen, Poczulp, Gary, and Sholl, Michael J.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The Dark Energy Spectroscopic Instrument (DESI) is under construction to measure the expansion history of the Universe using the Baryon Acoustic Oscillation technique. The spectra of 35 million galaxies and quasars over 14000 square degrees will be measured during the life of the experiment. A new prime focus corrector for the KPNO Mayall telescope will deliver light to 5000 fiber optic positioners. The fibers in turn feed ten broad-band spectrographs. We describe the DESI corrector optics, a series of six fused silica and borosilicate lenses. The lens diameters range from 0.8 to 1.1 meters, and their weights 84 to 237 kg. Most lens surfaces are spherical, and two are challenging 10th-order polynomial aspheres. The lenses have been successfully polished and treated with an antireflection coating at multiple subcontractors, and are now being integrated into the DESI corrector barrel assembly at University College London. We describe the final performance of the lenses in terms of their various parameters, including surface figure, homogeneity, and others, and compare their final performance against the demanding DESI corrector requirements. Also we describe the reoptimization of the lens spacing in their corrector barrel after their final measurements are known. Finally we assess the performance of the corrector as a whole, compared to early budgeted estimates.

Published
2018
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8. Astro2020 APC White Paper: The MegaMapper: a z > 2 spectroscopic instrument for the study of Inflation and Dark Energy

Author

Schlegel, David J, Kollmeier, Juna A, Aldering, Greg, Bailey, Stephen, Baltay, Charles, Bebek, Christopher, BenZvi, Segev, Besuner, Robert, Blanc, Guillermo, Bolton, Adam S, Bouri, Mohamed, Brooks, David, Buckley-Geer, Elizabeth, Cai, Zheng, Crane, Jeffrey, Dey, Arjun, Doel, Peter, Fan, Xiaohui, Ferraro, Simone, Font-Ribera, Andreu, Gutierrez, Gaston, Guy, Julien, Heetderks, Henry, Huterer, Dragan, Infante, Leopoldo, Jelinsky, Patrick, Johns, Matthew, Karagiannis, Dionysios, Kent, Stephen M, Kim, Alex G, Kneib, Jean-Paul, Kronig, Luzius, Konidaris, Nick, Lahav, Ofer, Lampton, Michael L, Lang, Dustin, Leauthaud, Alexie, Liguori, Michele, Linder, Eric V, Magneville, Christophe, Martini, Paul, Mateo, Mario, McDonald, Patrick, Miller, Christopher J, Moustakas, John, Myers, Adam D, Mulchaey, John, Newman, Jeffrey A, Nugent, Peter E, Palanque-Delabrouille, Nathalie, Padmanabhan, Nikhil, Piro, Anthony L, Poppett, Claire, Prochaska, Jason X, Pullen, Anthony R, Rabinowitz, David, Ramirez, Solange, Rix, Hans-Walter, Ross, Ashley J, Samushia, Lado, Schaan, Emmanuel, Schubnell, Michael, Seljak, Uros, Seo, Hee-Jong, Shectman, Stephen A, Silber, Joseph, Simon, Joshua D, Slepian, Zachary, Soares-Santos, Marcelle, Tarle, Greg, Thompson, Ian, Valluri, Monica, Wechsler, Risa H, White, Martin, Wilson, Michael J, Yeche, Christophe, and Zaritsky, Dennis

Subjects
astro-ph.IM, hep-ex
Abstract

MegaMapper is a proposed ground-based experiment to measure Inflationparameters and Dark Energy from galaxy redshifts at 2

Published
2019

9. The DESI Experiment Part I: Science,Targeting, and Survey Design

Author

DESI Collaboration, Aghamousa, Amir, Aguilar, Jessica, Ahlen, Steve, Alam, Shadab, Allen, Lori E., Prieto, Carlos Allende, Annis, James, Bailey, Stephen, Balland, Christophe, Ballester, Otger, Baltay, Charles, Beaufore, Lucas, Bebek, Chris, Beers, Timothy C., Bell, Eric F., Bernal, José Luis, Besuner, Robert, Beutler, Florian, Blake, Chris, Bleuler, Hannes, Blomqvist, Michael, Blum, Robert, Bolton, Adam S., Briceno, Cesar, Brooks, David, Brownstein, Joel R., Buckley-Geer, Elizabeth, Burden, Angela, Burtin, Etienne, Busca, Nicolas G., Cahn, Robert N., Cai, Yan-Chuan, Cardiel-Sas, Laia, Carlberg, Raymond G., Carton, Pierre-Henri, Casas, Ricard, Castander, Francisco J., Cervantes-Cota, Jorge L., Claybaugh, Todd M., Close, Madeline, Coker, Carl T., Cole, Shaun, Comparat, Johan, Cooper, Andrew P., Cousinou, M. -C., Crocce, Martin, Cuby, Jean-Gabriel, Cunningham, Daniel P., Davis, Tamara M., Dawson, Kyle S., de la Macorra, Axel, De Vicente, Juan, Delubac, Timothée, Derwent, Mark, Dey, Arjun, Dhungana, Govinda, Ding, Zhejie, Doel, Peter, Duan, Yutong T., Ealet, Anne, Edelstein, Jerry, Eftekharzadeh, Sarah, Eisenstein, Daniel J., Elliott, Ann, Escoffier, Stéphanie, Evatt, Matthew, Fagrelius, Parker, Fan, Xiaohui, Fanning, Kevin, Farahi, Arya, Farihi, Jay, Favole, Ginevra, Feng, Yu, Fernandez, Enrique, Findlay, Joseph R., Finkbeiner, Douglas P., Fitzpatrick, Michael J., Flaugher, Brenna, Flender, Samuel, Font-Ribera, Andreu, Forero-Romero, Jaime E., Fosalba, Pablo, Frenk, Carlos S., Fumagalli, Michele, Gaensicke, Boris T., Gallo, Giuseppe, Garcia-Bellido, Juan, Gaztanaga, Enrique, Fusillo, Nicola Pietro Gentile, Gerard, Terry, Gershkovich, Irena, Giannantonio, Tommaso, Gillet, Denis, Gonzalez-de-Rivera, Guillermo, Gonzalez-Perez, Violeta, Gott, Shelby, Graur, Or, Gutierrez, Gaston, Guy, Julien, Habib, Salman, Heetderks, Henry, Heetderks, Ian, Heitmann, Katrin, Hellwing, Wojciech A., Herrera, David A., Ho, Shirley, Holland, Stephen, Honscheid, Klaus, Huff, Eric, Hutchinson, Timothy A., Huterer, Dragan, Hwang, Ho Seong, Laguna, Joseph Maria Illa, Ishikawa, Yuzo, Jacobs, Dianna, Jeffrey, Niall, Jelinsky, Patrick, Jennings, Elise, Jiang, Linhua, Jimenez, Jorge, Johnson, Jennifer, Joyce, Richard, Jullo, Eric, Juneau, Stéphanie, Kama, Sami, Karcher, Armin, Karkar, Sonia, Kehoe, Robert, Kennamer, Noble, Kent, Stephen, Kilbinger, Martin, Kim, Alex G., Kirkby, David, Kisner, Theodore, Kitanidis, Ellie, Kneib, Jean-Paul, Koposov, Sergey, Kovacs, Eve, Koyama, Kazuya, Kremin, Anthony, Kron, Richard, Kronig, Luzius, Kueter-Young, Andrea, Lacey, Cedric G., Lafever, Robin, Lahav, Ofer, Lambert, Andrew, Lampton, Michael, Landriau, Martin, Lang, Dustin, Lauer, Tod R., Goff, Jean-Marc Le, Guillou, Laurent Le, Van Suu, Auguste Le, Lee, Jae Hyeon, Lee, Su-Jeong, Leitner, Daniela, Lesser, Michael, Levi, Michael E., L'Huillier, Benjamin, Li, Baojiu, Liang, Ming, Lin, Huan, Linder, Eric, Loebman, Sarah R., Lukić, Zarija, Ma, Jun, MacCrann, Niall, Magneville, Christophe, Makarem, Laleh, Manera, Marc, Manser, Christopher J., Marshall, Robert, Martini, Paul, Massey, Richard, Matheson, Thomas, McCauley, Jeremy, McDonald, Patrick, McGreer, Ian D., Meisner, Aaron, Metcalfe, Nigel, Miller, Timothy N., Miquel, Ramon, Moustakas, John, Myers, Adam, Naik, Milind, Newman, Jeffrey A., Nichol, Robert C., Nicola, Andrina, da Costa, Luiz Nicolati, Nie, Jundan, Niz, Gustavo, Norberg, Peder, Nord, Brian, Norman, Dara, Nugent, Peter, O'Brien, Thomas, Oh, Minji, Olsen, Knut A. G., Padilla, Cristobal, Padmanabhan, Hamsa, Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Palmese, Antonella, Pappalardo, Daniel, Pâris, Isabelle, Park, Changbom, Patej, Anna, Peacock, John A., Peiris, Hiranya V., Peng, Xiyan, Percival, Will J., Perruchot, Sandrine, Pieri, Matthew M., Pogge, Richard, Pollack, Jennifer E., Poppett, Claire, Prada, Francisco, Prakash, Abhishek, Probst, Ronald G., Rabinowitz, David, Raichoor, Anand, Ree, Chang Hee, Refregier, Alexandre, Regal, Xavier, Reid, Beth, Reil, Kevin, Rezaie, Mehdi, Rockosi, Constance M., Roe, Natalie, Ronayette, Samuel, Roodman, Aaron, Ross, Ashley J., Ross, Nicholas P., Rossi, Graziano, Rozo, Eduardo, Ruhlmann-Kleider, Vanina, Rykoff, Eli S., Sabiu, Cristiano, Samushia, Lado, Sanchez, Eusebio, Sanchez, Javier, Schlegel, David J., Schneider, Michael, Schubnell, Michael, Secroun, Aurélia, Seljak, Uros, Seo, Hee-Jong, Serrano, Santiago, Shafieloo, Arman, Shan, Huanyuan, Sharples, Ray, Sholl, Michael J., Shourt, William V., Silber, Joseph H., Silva, David R., Sirk, Martin M., Slosar, Anze, Smith, Alex, Smoot, George F., Som, Debopam, Song, Yong-Seon, Sprayberry, David, Staten, Ryan, Stefanik, Andy, Tarle, Gregory, Tie, Suk Sien, Tinker, Jeremy L., Tojeiro, Rita, Valdes, Francisco, Valenzuela, Octavio, Valluri, Monica, Vargas-Magana, Mariana, Verde, Licia, Walker, Alistair R., Wang, Jiali, Wang, Yuting, Weaver, Benjamin A., Weaverdyck, Curtis, Wechsler, Risa H., Weinberg, David H., White, Martin, Yang, Qian, Yeche, Christophe, Zhang, Tianmeng, Zhao, Gong-Bo, Zheng, Yi, Zhou, Xu, Zhou, Zhimin, Zhu, Yaling, Zou, Hu, and Zu, Ying

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

DESI (Dark Energy Spectroscopic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations (BAO) and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. To trace the underlying dark matter distribution, spectroscopic targets will be selected in four classes from imaging data. We will measure luminous red galaxies up to $z=1.0$. To probe the Universe out to even higher redshift, DESI will target bright [O II] emission line galaxies up to $z=1.7$. Quasars will be targeted both as direct tracers of the underlying dark matter distribution and, at higher redshifts ($ 2.1 < z < 3.5$), for the Ly-$\alpha$ forest absorption features in their spectra, which will be used to trace the distribution of neutral hydrogen. When moonlight prevents efficient observations of the faint targets of the baseline survey, DESI will conduct a magnitude-limited Bright Galaxy Survey comprising approximately 10 million galaxies with a median $z\approx 0.2$. In total, more than 30 million galaxy and quasar redshifts will be obtained to measure the BAO feature and determine the matter power spectrum, including redshift space distortions.

Published
2016

10. The DESI Experiment Part II: Instrument Design

Author

DESI Collaboration, Aghamousa, Amir, Aguilar, Jessica, Ahlen, Steve, Alam, Shadab, Allen, Lori E., Prieto, Carlos Allende, Annis, James, Bailey, Stephen, Balland, Christophe, Ballester, Otger, Baltay, Charles, Beaufore, Lucas, Bebek, Chris, Beers, Timothy C., Bell, Eric F., Bernal, José Luis, Besuner, Robert, Beutler, Florian, Blake, Chris, Bleuler, Hannes, Blomqvist, Michael, Blum, Robert, Bolton, Adam S., Briceno, Cesar, Brooks, David, Brownstein, Joel R., Buckley-Geer, Elizabeth, Burden, Angela, Burtin, Etienne, Busca, Nicolas G., Cahn, Robert N., Cai, Yan-Chuan, Cardiel-Sas, Laia, Carlberg, Raymond G., Carton, Pierre-Henri, Casas, Ricard, Castander, Francisco J., Cervantes-Cota, Jorge L., Claybaugh, Todd M., Close, Madeline, Coker, Carl T., Cole, Shaun, Comparat, Johan, Cooper, Andrew P., Cousinou, M. -C., Crocce, Martin, Cuby, Jean-Gabriel, Cunningham, Daniel P., Davis, Tamara M., Dawson, Kyle S., de la Macorra, Axel, De Vicente, Juan, Delubac, Timothée, Derwent, Mark, Dey, Arjun, Dhungana, Govinda, Ding, Zhejie, Doel, Peter, Duan, Yutong T., Ealet, Anne, Edelstein, Jerry, Eftekharzadeh, Sarah, Eisenstein, Daniel J., Elliott, Ann, Escoffier, Stéphanie, Evatt, Matthew, Fagrelius, Parker, Fan, Xiaohui, Fanning, Kevin, Farahi, Arya, Farihi, Jay, Favole, Ginevra, Feng, Yu, Fernandez, Enrique, Findlay, Joseph R., Finkbeiner, Douglas P., Fitzpatrick, Michael J., Flaugher, Brenna, Flender, Samuel, Font-Ribera, Andreu, Forero-Romero, Jaime E., Fosalba, Pablo, Frenk, Carlos S., Fumagalli, Michele, Gaensicke, Boris T., Gallo, Giuseppe, Garcia-Bellido, Juan, Gaztanaga, Enrique, Fusillo, Nicola Pietro Gentile, Gerard, Terry, Gershkovich, Irena, Giannantonio, Tommaso, Gillet, Denis, Gonzalez-de-Rivera, Guillermo, Gonzalez-Perez, Violeta, Gott, Shelby, Graur, Or, Gutierrez, Gaston, Guy, Julien, Habib, Salman, Heetderks, Henry, Heetderks, Ian, Heitmann, Katrin, Hellwing, Wojciech A., Herrera, David A., Ho, Shirley, Holland, Stephen, Honscheid, Klaus, Huff, Eric, Hutchinson, Timothy A., Huterer, Dragan, Hwang, Ho Seong, Laguna, Joseph Maria Illa, Ishikawa, Yuzo, Jacobs, Dianna, Jeffrey, Niall, Jelinsky, Patrick, Jennings, Elise, Jiang, Linhua, Jimenez, Jorge, Johnson, Jennifer, Joyce, Richard, Jullo, Eric, Juneau, Stéphanie, Kama, Sami, Karcher, Armin, Karkar, Sonia, Kehoe, Robert, Kennamer, Noble, Kent, Stephen, Kilbinger, Martin, Kim, Alex G., Kirkby, David, Kisner, Theodore, Kitanidis, Ellie, Kneib, Jean-Paul, Koposov, Sergey, Kovacs, Eve, Koyama, Kazuya, Kremin, Anthony, Kron, Richard, Kronig, Luzius, Kueter-Young, Andrea, Lacey, Cedric G., Lafever, Robin, Lahav, Ofer, Lambert, Andrew, Lampton, Michael, Landriau, Martin, Lang, Dustin, Lauer, Tod R., Goff, Jean-Marc Le, Guillou, Laurent Le, Van Suu, Auguste Le, Lee, Jae Hyeon, Lee, Su-Jeong, Leitner, Daniela, Lesser, Michael, Levi, Michael E., L'Huillier, Benjamin, Li, Baojiu, Liang, Ming, Lin, Huan, Linder, Eric, Loebman, Sarah R., Lukić, Zarija, Ma, Jun, MacCrann, Niall, Magneville, Christophe, Makarem, Laleh, Manera, Marc, Manser, Christopher J., Marshall, Robert, Martini, Paul, Massey, Richard, Matheson, Thomas, McCauley, Jeremy, McDonald, Patrick, McGreer, Ian D., Meisner, Aaron, Metcalfe, Nigel, Miller, Timothy N., Miquel, Ramon, Moustakas, John, Myers, Adam, Naik, Milind, Newman, Jeffrey A., Nichol, Robert C., Nicola, Andrina, da Costa, Luiz Nicolati, Nie, Jundan, Niz, Gustavo, Norberg, Peder, Nord, Brian, Norman, Dara, Nugent, Peter, O'Brien, Thomas, Oh, Minji, Olsen, Knut A. G., Padilla, Cristobal, Padmanabhan, Hamsa, Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Palmese, Antonella, Pappalardo, Daniel, Pâris, Isabelle, Park, Changbom, Patej, Anna, Peacock, John A., Peiris, Hiranya V., Peng, Xiyan, Percival, Will J., Perruchot, Sandrine, Pieri, Matthew M., Pogge, Richard, Pollack, Jennifer E., Poppett, Claire, Prada, Francisco, Prakash, Abhishek, Probst, Ronald G., Rabinowitz, David, Raichoor, Anand, Ree, Chang Hee, Refregier, Alexandre, Regal, Xavier, Reid, Beth, Reil, Kevin, Rezaie, Mehdi, Rockosi, Constance M., Roe, Natalie, Ronayette, Samuel, Roodman, Aaron, Ross, Ashley J., Ross, Nicholas P., Rossi, Graziano, Rozo, Eduardo, Ruhlmann-Kleider, Vanina, Rykoff, Eli S., Sabiu, Cristiano, Samushia, Lado, Sanchez, Eusebio, Sanchez, Javier, Schlegel, David J., Schneider, Michael, Schubnell, Michael, Secroun, Aurélia, Seljak, Uros, Seo, Hee-Jong, Serrano, Santiago, Shafieloo, Arman, Shan, Huanyuan, Sharples, Ray, Sholl, Michael J., Shourt, William V., Silber, Joseph H., Silva, David R., Sirk, Martin M., Slosar, Anze, Smith, Alex, Smoot, George F., Som, Debopam, Song, Yong-Seon, Sprayberry, David, Staten, Ryan, Stefanik, Andy, Tarle, Gregory, Tie, Suk Sien, Tinker, Jeremy L., Tojeiro, Rita, Valdes, Francisco, Valenzuela, Octavio, Valluri, Monica, Vargas-Magana, Mariana, Verde, Licia, Walker, Alistair R., Wang, Jiali, Wang, Yuting, Weaver, Benjamin A., Weaverdyck, Curtis, Wechsler, Risa H., Weinberg, David H., White, Martin, Yang, Qian, Yeche, Christophe, Zhang, Tianmeng, Zhao, Gong-Bo, Zheng, Yi, Zhou, Xu, Zhou, Zhimin, Zhu, Yaling, Zou, Hu, and Zu, Ying

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

DESI (Dark Energy Spectropic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. The DESI instrument is a robotically-actuated, fiber-fed spectrograph capable of taking up to 5,000 simultaneous spectra over a wavelength range from 360 nm to 980 nm. The fibers feed ten three-arm spectrographs with resolution $R= \lambda/\Delta\lambda$ between 2000 and 5500, depending on wavelength. The DESI instrument will be used to conduct a five-year survey designed to cover 14,000 deg$^2$. This powerful instrument will be installed at prime focus on the 4-m Mayall telescope in Kitt Peak, Arizona, along with a new optical corrector, which will provide a three-degree diameter field of view. The DESI collaboration will also deliver a spectroscopic pipeline and data management system to reduce and archive all data for eventual public use.

Published
2016

11. BigBOSS: The Ground-Based Stage IV Dark Energy Experiment

Author

Schlegel, David J., Bebek, Chris, Heetderks, Henry, Ho, Shirley, Lampton, Michael, Levi, Michael, Mostek, Nick, Padmanabhan, Nikhil, Perlmutter, Saul, Roe, Natalie, Sholl, Michael, Smoot, George, White, Martin, Dey, Arjun, Abraham, Tony, Jannuzi, Buell, Joyce, Dick, Liang, Ming, Merrill, Mike, Olsen, Knut, and Salim, Samir

Subjects
Astrophysics - Cosmology and Extragalactic Astrophysics
Abstract

The BigBOSS experiment is a proposed DOE-NSF Stage IV ground-based dark energy experiment to study baryon acoustic oscillations (BAO) and the growth of structure with an all-sky galaxy redshift survey. The project is designed to unlock the mystery of dark energy using existing ground-based facilities operated by NOAO. A new 4000-fiber R=5000 spectrograph covering a 3-degree diameter field will measure BAO and redshift space distortions in the distribution of galaxies and hydrogen gas spanning redshifts from 0.2

Published
2009

12. The Robotic Multiobject Focal Plane System of the Dark Energy Spectroscopic Instrument (DESI)

Author

Silber, Joseph Harry, primary, Fagrelius, Parker, additional, Fanning, Kevin, additional, Schubnell, Michael, additional, Aguilar, Jessica Nicole, additional, Ahlen, Steven, additional, Ameel, Jon, additional, Ballester, Otger, additional, Baltay, Charles, additional, Bebek, Chris, additional, Beard, Dominic Benton, additional, Besuner, Robert, additional, Cardiel-Sas, Laia, additional, Casas, Ricard, additional, Castander, Francisco Javier, additional, Claybaugh, Todd, additional, Dobson, Carl, additional, Duan, Yutong, additional, Dunlop, Patrick, additional, Edelstein, Jerry, additional, Emmet, William T., additional, Elliott, Ann, additional, Evatt, Matthew, additional, Gershkovich, Irena, additional, Guy, Julien, additional, Harris, Stu, additional, Heetderks, Henry, additional, Heetderks, Ian, additional, Honscheid, Klaus, additional, Illa, Jose Maria, additional, Jelinsky, Patrick, additional, Jelinsky, Sharon R., additional, Jimenez, Jorge, additional, Karcher, Armin, additional, Kent, Stephen, additional, Kirkby, David, additional, Kneib, Jean-Paul, additional, Lambert, Andrew, additional, Lampton, Mike, additional, Leitner, Daniela, additional, Levi, Michael, additional, McCauley, Jeremy, additional, Meisner, Aaron, additional, Miller, Timothy N., additional, Miquel, Ramon, additional, Mundet, Juliá, additional, Poppett, Claire, additional, Rabinowitz, David, additional, Reil, Kevin, additional, Roman, David, additional, Schlegel, David, additional, Serrano, Santiago, additional, Van Shourt, William, additional, Sprayberry, David, additional, Tarlé, Gregory, additional, Tie, Suk Sien, additional, Weaverdyck, Curtis, additional, Zhang, Kai, additional, Azzaro, Marco, additional, Bailey, Stephen, additional, Becerril, Santiago, additional, Blackwell, Tami, additional, Bouri, Mohamed, additional, Brooks, David, additional, Buckley-Geer, Elizabeth, additional, Castro, Jose Peñate, additional, Derwent, Mark, additional, Dey, Arjun, additional, Dhungana, Govinda, additional, Doel, Peter, additional, Eisenstein, Daniel J., additional, Fahim, Nasib, additional, Garcia-Bellido, Juan, additional, Gaztañaga, Enrique, additional, A Gontcho, Satya Gontcho, additional, Gutierrez, Gaston, additional, Hörler, Philipp, additional, Kehoe, Robert, additional, Kisner, Theodore, additional, Kremin, Anthony, additional, Kronig, Luzius, additional, Landriau, Martin, additional, Le Guillou, Laurent, additional, Martini, Paul, additional, Moustakas, John, additional, Palanque-Delabrouille, Nathalie, additional, Peng, Xiyan, additional, Percival, Will, additional, Prada, Francisco, additional, Prieto, Carlos Allende, additional, de Rivera, Guillermo Gonzalez, additional, Sanchez, Eusebio, additional, Sanchez, Justo, additional, Sharples, Ray, additional, Soares-Santos, Marcelle, additional, Schlafly, Edward, additional, Weaver, Benjamin Alan, additional, Zhou, Zhimin, additional, Zhu, Yaling, additional, and Zou, Hu, additional

Published
2022
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13. Astro2020 APC White Paper: The MegaMapper: a z > 2 Spectroscopic Instrument for the Study of Inflation and Dark Energy

Author

Schlegel, David, primary, Kollmeier, Juna, additional, Aldering, Greg, additional, Bailey, Stephen, additional, Baltay, Charles, additional, Bebek, Christopher, additional, BenZvi, Segev, additional, Besuner, Robert, additional, Blanc, Guillermo, additional, Bolton, Adam, additional, Bouri, Mohamed, additional, Brooks, David, additional, Buckley-Geer, Elizabeth, additional, Cai, Zheng, additional, Crane, Jeffrey, additional, Dey, Arjun, additional, Doel, Peter, additional, Fan, Xiaohui, additional, Ferraro, Simone, additional, Font-Ribera, Andreu, additional, Gutierrez, Gaston, additional, Guy, Julien, additional, Heetderks, Henry, additional, Huterer, Dragan, additional, Infante, Leopoldo, additional, Jelinsky, Patrick, additional, Johns, Matthew, additional, Karagiannis, Dionysios, additional, Kent, Stephen, additional, Kim, Alex, additional, Kneib, Jean-Paul, additional, Kronig, Luzius, additional, Konidaris, Nick, additional, Lahav, Ofer, additional, Lampton, Michael, additional, Lang, Dustin, additional, Leauthaud, Alexie, additional, Liguori, Michele, additional, Linder, Eric, additional, Magneville, Christophe, additional, Martini, Paul, additional, Mateo, Mario, additional, McDonald, Patrick, additional, Miller, Christopher, additional, Moustakas, John, additional, Myers, Adam, additional, Mulchaey, John, additional, Newman, Jeffrey, additional, Nugent, Peter, additional, Palanque-Delabrouille, Nathalie, additional, Padmanabhan, Nikhil, additional, Piro, Anthony, additional, Poppett, Claire, additional, Prochaska, Jason, additional, Pullen, Anthony, additional, Rabinowitz, David, additional, Ramirez, Solange, additional, Rix, Hans-Walter, additional, Ross, Ashley, additional, Samushia, Lado, additional, Schaan, Emmanuel, additional, Schubnell, Michael, additional, Seljak, Uros, additional, Seo, Hee-Jong, additional, Shectman, Stephen, additional, Silber, Joseph, additional, Simon, Joshua, additional, Slepian, Zachary, additional, Soares-Santos, Marcelle, additional, Tarle, Greg, additional, Thompson, Ian, additional, Valluri, Monica, additional, Wechsler, Risa, additional, White, Martin, additional, Wilson, Michael, additional, Yeche, Christophe, additional, and Zaritsky, Dennis, additional

Published
2019
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14. BigBOSS: The Ground-Based Stage IV BAO Experiment

Author

Schlegel, David, primary, Bebek, Chris, additional, Heetderks, Henry, additional, Ho, Shirley, additional, Lampton, Michael, additional, Levi, Michael, additional, Mostek, Nick, additional, Padmanabhan, Nikhil, additional, Perlmutter, Saul, additional, Roe, Natalie, additional, Sholl, Michael, additional, Smoot, George, additional, White, Martin, additional, Dey, Arjun, additional, Abraham, Tony, additional, Jannuzi, Buell, additional, Joyce, Dick, additional, Liang, Ming, additional, Merrill, Mike, additional, Olsen, Knut, additional, and Salim, Samir, additional

Published
2009
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15. DESI fiber positioner testing and performance (Conference Presentation)

Author

Schubnell, Michael S., primary, Aguilar, Jessica N., additional, Ameel, Jon, additional, Caseiro, Stefane, additional, Fanning, Kevin, additional, Freudenstein, Brandon, additional, Gershkovich, Irena, additional, Heetderks, Henry, additional, Hörler, Philipp, additional, Leitner, Daniela, additional, Levi, Michael, additional, Silber, Joseph H., additional, Sun, Zhiquan, additional, Tarlé, Gregory, additional, Weaverdyck, Curtis, additional, Zhang, Kai, additional, and Brooks, David, additional

Published
2018
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16. Broadband anti-reflection coating for the meter class Dark Energy Spectroscopic Instrument lenses

Author

Miller, Timothy N., primary, Besuner, Robert W., primary, Levi, Michael E., primary, Lampton, Michael, primary, Jelinsky, Patrick, primary, Edelstein, Jerry, primary, Schlegel, David J., primary, McCauley, Jeremy S., primary, Heetderks, Henry, primary, Sholl, Michael J., primary, Doel, Peter, primary, Brooks, David, primary, Kennemore, Charles M., primary, Archer, Debi, primary, Barbaria, Russ, primary, Bertolina, Joe, primary, Dix, Rick, primary, Dodson, Katy, primary, Doi-Okray, Sharon, primary, Gallon, Aaron, primary, Sweet, Bill, primary, and Kent, Stephen, primary

Published
2018
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17. Fabrication of the DESI corrector lenses

Author

Brooks, David, primary, Miller, Timothy N., primary, Besuner, Robert W., primary, Levi, Michael E., primary, Lampton, Michael, primary, Jelinsky, Patrick, primary, Heetderks, Henry, primary, Schlegel, David J., primary, Edelstein, Jerry, primary, Doel, Peter, primary, Kent, Stephen, primary, Poczulp, Gary, primary, and Sholl, Michael J., primary

Published
2018
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19. Dark energy spectroscopic instrument (DESI) fiber positioner production

Author

Ameel, Jon, primary, Leitner, Daniela, primary, Aguilar, Jessica N., primary, Silber, Joseph H., primary, Weaverdyck, Curtis, primary, Schubnell, Michael S., primary, Tarlé, Gregory, primary, Claybaugh, Todd M., primary, Heetderks, Henry, primary, Besuner, Robert W., primary, Kneib, Jean-Paul, primary, and Zhang, Kai, primary

Published
2018
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20. The DESI Experiment Part I: Science,Targeting, and Survey Design

Author

Aghamousa, Amir, Aguilar, Jessica, Ahlen, Steve, Alam, Shadab, Allen, Lori E., Prieto, Carlos Allende, Annis, James, Bailey, Stephen, Balland, Christophe, Ballester, Otger, Baltay, Charles, Beaufore, Lucas, Bebek, Chris, Beers, Timothy C., Bell, Eric F., Bernal, José Luis, Besuner, Robert, Beutler, Florian, Blake, Chris, Bleuler, Hannes, Blomqvist, Michael, Blum, Robert, Bolton, Adam S., Briceno, Cesar, Brooks, David, Brownstein, Joel R., Buckley-Geer, Elizabeth, Burden, Angela, Burtin, Etienne, Busca, Nicolás G., Cahn, Robert N., Cai, Yan-Chuan, Cardiel-Sas, Laia, Carlberg, Raymond G., Carton, Pierre-Henri, Casas, Ricard, Castander, Francisco J., Cervantes-Cota, Jorge L., Claybaugh, Todd M., Close, Madeline, Coker, Carl T., Cole, Shaun, Comparat, Johan, Cooper, Andrew P., Cousinou, M. -C., Crocce, Martin, Cuby, Jean-Gabriel, Cunningham, Daniel P., Davis, Tamara M., Dawson, Kyle S., de La Macorra, Axel, de Vicente, Juan, Delubac, Timothée, Derwent, Mark, Dey, Arjun, Dhungana, Govinda, Ding, Zhejie, Doel, Peter, Duan, Yutong T., Ealet, Anne, Edelstein, Jerry, Eftekharzadeh, Sarah, Eisenstein, Daniel J., Elliott, Ann, Escoffier, Stephanie, Evatt, Matthew, Fagrelius, Parker, Fan, Xiaohui, Fanning, Kevin, Farahi, Arya, Farihi, Jay, Favole, Ginevra, Feng, Yu, Fernandez, Enrique, Findlay, Joseph R., Finkbeiner, Douglas P., Fitzpatrick, Michael J., Flaugher, Brenna, Flender, Samuel, Font-Ribera, Andreu, Forero-Romero, Jaime E., Fosalba, Pablo, Frenk, Carlos S., Fumagalli, Michele, Gaensicke, Boris T., Gallo, Giuseppe, Garcia-Bellido, Juan, Gaztanaga, Enrique, Fusillo, Nicola Pietro Gentile, Gerard, Terry, Gershkovich, Irena, Giannantonio, Tommaso, Gillet, Denis, Gonzalez-De-Rivera, Guillermo, Gonzalez-Perez, Violeta, Gott, Shelby, Graur, Or, Gutierrez, Gaston, Guy, Julien, Habib, Salman, Heetderks, Henry, Heetderks, Ian, Heitmann, Katrin, Hellwing, Wojciech A., Herrera, David A., Ho, Shirley, Holland, Stephen, Honscheid, Klaus, Huff, Eric, Hutchinson, Timothy A., Huterer, Dragan, Hwang, Ho Seong, Laguna, Joseph Maria Illa, Ishikawa, Yuzo, Jacobs, Dianna, Jeffrey, Niall, Jelinsky, Patrick, Jennings, Elise, Jiang, Linhua, Jimenez, Jorge, Johnson, Jennifer, Joyce, Richard, Jullo, Eric, Juneau, Stéphanie, Kama, Sami, Karcher, Armin, Karkar, Sonia, Kehoe, Robert, Kennamer, Noble, Kent, Stephen, Kilbinger, Martin, Kim, Alex G., Kirkby, David, Kisner, Theodore, Kitanidis, Ellie, Kneib, Jean-Paul, Koposov, Sergey, Kovacs, Eve, Koyama, Kazuya, Kremin, Anthony, Kron, Richard, Kronig, Luzius, Kueter-Young, Andrea, Lacey, Cedric G., Lafever, Robin, Lahav, Ofer, Lambert, Andrew, Lampton, Michael, Landriau, Martin, Lang, Dustin, Lauer, Tod R., Goff, Jean-Marc Le, Guillou, Laurent Le, van Suu, Auguste Le, Lee, Jae Hyeon, Lee, Su-Jeong, Leitner, Daniela, Lesser, Michael, Levi, Michael E., L'Huillier, Benjamin, Li, Baojiu, Liang, Ming, Lin, Huan, Linder, Eric, Loebman, Sarah R., Lukić, Zarija, Ma, Jun, Maccrann, Niall, Magneville, Christophe, Makarem, Laleh, Manera, Marc, Manser, Christopher J., Marshall, Robert, Martini, Paul, Massey, Richard, Matheson, Thomas, Mccauley, Jeremy, Mcdonald, Patrick, Mcgreer, Ian D., Meisner, Aaron, Metcalfe, Nigel, Miller, Timothy N., Miquel, Ramon, Moustakas, John, Myers, Adam, Naik, Milind, Newman, Jeffrey A., Nichol, Robert C., Nicola, Andrina, da Costa, Luiz Nicolati, Nie, Jundan, Niz, Gustavo, Norberg, Peder, Nord, Brian, Norman, Dara, Nugent, Peter, O'Brien, Thomas, Oh, Minji, Olsen, Knut A. G., Padilla, Cristobal, Padmanabhan, Hamsa, Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Palmese, Antonella, Pappalardo, Daniel, Paris, Isabelle, Park, Changbom, Patej, Anna, Peacock, John A., Peiris, Hiranya V., Peng, Xiyan, Percival, Will J., Perruchot, Sandrine, Pieri, Matthew M., Pogge, Richard, Pollack, Jennifer E., Poppett, Claire, Prada, Francisco, Prakash, Abhishek, Probst, Ronald G., Rabinowitz, David, Raichoor, Anand, Ree, Chang Hee, Refregier, Alexandre, Régal, Xavier, Reid, Beth, Reil, Kevin, Rezaie, Mehdi, Rockosi, Constance M., Roe, Natalie, Ronayette, Samuel, Roodman, Aaron, Ross, Ashley J., Ross, Nicholas P., Rossi, Graziano, Rozo, Eduardo, Ruhlmann-Kleider, Vanina, Rykoff, Eli S., Sabiu, Cristiano, Samushia, Lado, Sanchez, Eusebio, Sanchez, Javier, Schlegel, David J., Schneider, Michael, Schubnell, Michael, Secroun, Aurélia, Seljak, Uros, Seo, Hee-Jong, Serrano, Santiago, Shafieloo, Arman, Shan, Huanyuan, Sharples, Ray, Sholl, Michael J., Shourt, William V., Silber, Joseph H., Silva, David R., Sirk, Martin M., Slosar, Anze, Smith, Alex, Smoot, George F., Som, Debopam, Song, Yong-Seon, Sprayberry, David, Staten, Ryan, Stefanik, Andy, Tarlè, Gregory, Tie, Suk Sien, Tinker, Jeremy L., Tojeiro, Rita, Valdes, Francisco, Valenzuela, Octavio, Valluri, Monica, Vargas-Magaña, Mariana, Verde, Licia, Walker, Alistair R., Wang, Jiali, Wang, Yuting, Weaver, Benjamin A., Weaverdyck, Curtis, Wechsler, Risa H., Weinberg, David H., White, Martin, Yang, Qian, Yeche, Christophe, Zhang, Tianmeng, Zhao, Gong-Bo, Zheng, Yi, Zhou, Xu, Zhou, Zhimin, Zhu, Yaling, Zou, Hu, Zu, Ying, Korea Astronomy and Space Science Institute (KASI), Okayama University, University of California [Berkeley], University of California, National Optical Astronomy Observatory (NOAO), Instituto de Astrofisica de Canarias (IAC), Fermi National Accelerator Laboratory (Fermilab), Lawrence Berkeley National Laboratory [Berkeley] (LBNL), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de Física d’Altes Energies [Barcelone] (IFAE), Universitat Autònoma de Barcelona (UAB), Yale University [New Haven], Ohio State University [Columbus] (OSU), The University of Notre Dame [Sydney], Department of Astronomy, University of Michigan, University of Michigan [Ann Arbor], University of Michigan System-University of Michigan System, Institut de Ciencies del Cosmos (ICCUB), Universitat de Barcelona (UB), Space Sciences Laboratory [Berkeley] (SSL), University of California-University of California, University of Portsmouth, University of British Columbia (UBC), Ecole Polytechnique Fédérale de Lausanne (EPFL), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Cerro Tololo Inter-American Observatory, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, APC - Cosmologie, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institute for Astronomy [Edinburgh] (IfA), University of Edinburgh, Department of Astronomy & Astrophysics [University of Toronto], University of Toronto, Institut de Ciencies de l'Espai [Barcelona] (ICE-CSIC), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Carreterra Mexico-Toluca, Department of Physics [Durham University], Durham University, Department of Astronomy, The Ohio State University, Departamento de FisicaTeorica e IFT-UAM/CSIC, Universidad Autonoma de Madrid (UAM), Institute for Computational Cosmology (ICC), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Universidad Nacional Autónoma de México (UNAM), Department of Applied Physics, Departamento de Fisica Aplicada [Granada], Universidad de Granada (UGR)-Universidad de Granada (UGR), University College of London [London] (UCL), University of Wyoming (UW), Harvard-Smithsonian Center for Astrophysics (CfA), Harvard University [Cambridge]-Smithsonian Institution, Arizona State University [Tempe] (ASU), Department of Information Engineering, Zhejiang University of Technology, Zhejiang University of Technology, Institute for Astronomy [Honolulu], University of Hawai‘i [Mānoa] (UHM), Università degli Studi di Milano-Bicocca [Milano] (UNIMIB), Departamento de Fisica Teorica, Institute of Cosmology & Gravitation [Portsmouth], Carnegie Mellon University [Pittsburgh] (CMU), NASA Goddard Space Flight Center (GSFC), Korea Institute for Advanced Study (KIAS), Department of Physics and Astronomy [Irvine], University of California [Irvine] (UCI), Department of Physics, University of California, University of California [Los Angeles] (UCLA), Institute of Astronomy [Cambridge], University of Cambridge [UK] (CAM), Institute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouth, Observatoire de Haute-Provence (OHP), Institut Pythéas (OSU PYTHEAS), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Center for Cosmology & AstroParticle Physics, California Institute of Technology (CALTECH), Department of Physics and Astronomy [Pittsburgh], University of Pittsburgh (PITT), Pennsylvania Commonwealth System of Higher Education (PCSHE)-Pennsylvania Commonwealth System of Higher Education (PCSHE), Institute for Astronomy [Zürich], Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), School of Physics and Astronomy [Nottingham], University of Nottingham, UK (UON), Department of Physics [Durham], University of New Hampshire (UNH), University of Waterloo [Waterloo], Universität Zürich [Zürich] = University of Zurich (UZH), Department of Astronomy and Space Science [Sejong University], Sejong University, Department of Physics [Oxford], University of Oxford [Oxford], Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Department of Physics [Ann Arbor], University of St Andrews [Scotland], University of Science and Technology of China [Hefei] (USTC), Department of Computer Science and Engineering [Minneapolis], University of Minnesota [Twin Cities] (UMN), University of Minnesota System-University of Minnesota System, Karlsruhe Institute of Technology (KIT), National University of Defense Technology [China], DESI Collaboration, University of California [Berkeley] (UC Berkeley), University of California (UC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), University of California (UC)-University of California (UC), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Universidad Autónoma de Madrid (UAM), Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM), Universidad de Granada = University of Granada (UGR)-Universidad de Granada = University of Granada (UGR), Harvard University-Smithsonian Institution, Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), University of California [Irvine] (UC Irvine), University of Oxford, and Escoffier, Stephanie

Subjects
[PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astrophysics::Cosmology and Extragalactic Astrophysics, [PHYS.ASTR.IM] Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astrophysics::Galaxy Astrophysics
Abstract

DESI (Dark Energy Spectroscopic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations (BAO) and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. To trace the underlying dark matter distribution, spectroscopic targets will be selected in four classes from imaging data. We will measure luminous red galaxies up to $z=1.0$. To probe the Universe out to even higher redshift, DESI will target bright [O II] emission line galaxies up to $z=1.7$. Quasars will be targeted both as direct tracers of the underlying dark matter distribution and, at higher redshifts ($ 2.1 < z < 3.5$), for the Ly-$\alpha$ forest absorption features in their spectra, which will be used to trace the distribution of neutral hydrogen. When moonlight prevents efficient observations of the faint targets of the baseline survey, DESI will conduct a magnitude-limited Bright Galaxy Survey comprising approximately 10 million galaxies with a median $z\approx 0.2$. In total, more than 30 million galaxy and quasar redshifts will be obtained to measure the BAO feature and determine the matter power spectrum, including redshift space distortions.

Published
2016

23. The DESI fiber positioner system

Author

Schubnell, Michael, additional, Ameel, Jon, additional, Besuner, Robert W., additional, Gershkovich, Irena, additional, Heetderks, Henry D., additional, Hoerler, Philipp, additional, Kneib, Jean-Paul, additional, Silber, Joseph H., additional, Tarlé, Gregory, additional, and Weaverdyck, Curtis, additional

Published
2016
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26. Broadband anti-reflection coating for the meter class Dark Energy Spectroscopic Instrument lenses

Author

Navarro, Ramón, Geyl, Roland, Kennemore, Charles, Archer, Debi, Barbaria, Russ, Bertolina, Joe, Dix, Rick, Dodson, Katy, Doi-Okray, Sharon, Gallon, Aaron, Sweet, Bill, Miller, Timothy N., Besuner, Robert W., Levi, Michael E., Lampton, Michael, Jelinsky, Pat, Edelstein, Jerry, Schlegel, David J., McCauley, Jeremy, Heetderks, Henry, Sholl, Michael J., Doel, Peter, Brooks, David, and Kent, Stephen

Published
2018
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27. Fabrication of the DESI corrector lenses

Author

Navarro, Ramón, Geyl, Roland, Miller, Timothy N., Besuner, Robert W., Levi, Michael E., Lampton, Michael, Jelinsky, Patrick, Heetderks, Henry, Schlegel, David J., Edelstein, Jerry, Doel, Peter, Brooks, David, Kent, Stephen, Poczulp, Gary, and Sholl, Michael J.

Published
2018
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28. Design and performance of an R-&theta; fiber positioner for the BigBOSS instrument

Author

Silber, Joseph H., primary, Schenk, Christoph, additional, Anderssen, Eric, additional, Bebek, Chris, additional, Becker, Frederic, additional, Besuner, Robert, additional, Cepeda, Mario, additional, Edelstein, Jerry, additional, Heetderks, Henry, additional, Jelinsky, Patrick, additional, Johnson, Thomas, additional, Karcher, Armin, additional, Perry, Paul, additional, Post, Rodney, additional, Sholl, Michael, additional, Wilson, Kenneth, additional, and Zhou, Zengxaing, additional

Published
2012
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30. A 260 megapixel visible/NIR mixed technology focal plane for space

Author

Besuner, Robert W., primary, Bebek, Christopher J., additional, Haller, Gunther M., additional, Harris, Stewart E., additional, Hart, Philip A., additional, Heetderks, Henry D., additional, Jelinsky, Patrick N., additional, Lampton, Michael L., additional, Levi, Michael E., additional, Maldonado, Sergio E., additional, Roe, Natalie A., additional, Roodman, Aaron J., additional, and Sapozhnikov, Leonid, additional

Published
2011
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31. SNAP telescope: an update

Author

Lampton, Michael L., primary, Sholl, Michael J., additional, Krim, Michael H., additional, Besuner, R., additional, Akerlof, Carl W., additional, Aldering, Greg, additional, Amanullah, R., additional, Astier, Pierre, additional, Baltay, Charles, additional, Barrelet, E., additional, Basa, Stephane, additional, Bebek, Christopher, additional, Bercovitz, John, additional, Bergstrom, Lars, additional, Berstein, Gary, additional, Bester, Manfred, additional, Bohlin, Ralph C., additional, Bonissent, Alain, additional, Bower, Charles R., additional, Campbell, Myron, additional, Carithers, Jr., William C., additional, Commins, Eugene D., additional, Day, C., additional, Deustua, Susana E., additional, DiGennaro, Richard S., additional, Ealet, Anne, additional, Ellis, Richard S., additional, Emmett, William, additional, Eriksson, Mikael, additional, Fouchez, D., additional, Fruchter, Andrew, additional, Genat, Jean-Francois, additional, Goldhaber, Gerson, additional, Goobar, Ariel, additional, Groom, Donald E., additional, Heetderks, Henry D., additional, Holland, Stephen E., additional, Huterer, Dragan, additional, Johnston, William E., additional, Kadel, Richard W., additional, Karcher, Armin, additional, Kim, Alex G., additional, Kolbe, William F., additional, Lafever, Robin E., additional, Lamoureux, J. I., additional, LeFevre, Oliver, additional, Levi, Michael E., additional, Levin, Daniel S., additional, Linder, Eric V., additional, Loken, Stewart C., additional, Malina, Roger, additional, Mazure, Alain, additional, McKay, Timothy A., additional, McKee, Shawn P., additional, Miquel, Ramon, additional, Morgan, Nicholas, additional, Mortsell, E., additional, Mostek, Nick, additional, Mufson, Stuart, additional, Musser, J. A., additional, Nugent, Peter E., additional, Oluseyi, Hakeem M., additional, Pain, Reynald, additional, Palaio, Nick P., additional, Pankow, David H., additional, Perlmutter, Saul, additional, Prieto, Eric, additional, Rabinowitz, David, additional, Refregier, Alexandre, additional, Rhodes, Jason, additional, Roe, Natalie A., additional, Schubnell, Michael S., additional, Smadja, G., additional, Smith, R., additional, Smoot, George F., additional, Snyder, Jeffrey A., additional, Spadafora, Anthony, additional, Szymkowiak, Andrew, additional, Tarle, Gregory, additional, Taylor, Keith, additional, Tilquin, A., additional, Tomasch, Andrew D., additional, Vincent, D., additional, von der Lippe, Henrik, additional, Walder, Jean-Pierre, additional, and Wang, Guobin, additional

Published
2004
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32. SNAP satellite focal plane development

Author

Bebek, Christopher, primary, Akerlof, Carl W., additional, Aldering, Greg, additional, Amanullah, R., additional, Astier, Pierre, additional, Baltay, Charles, additional, Barrelet, E., additional, Basa, Stephane, additional, Bercovitz, John, additional, Bergstrom, Lars, additional, Berstein, Gary, additional, Bester, Manfred, additional, Bohlin, Ralph C., additional, Bonissent, Alain, additional, Bower, Charles R., additional, Campbell, Myron, additional, Carithers, William C., additional, Commins, Eugene D., additional, Day, C., additional, Deustua, Susana E., additional, DiGennaro, Richard S., additional, Ealet, Anne, additional, Ellis, Richard S., additional, Emmett, William, additional, Eriksson, Mikael, additional, Fouchez, D., additional, Fruchter, Andrew, additional, Genat, Jean-Francois, additional, Goldhaber, Gerson, additional, Goobar, Ariel, additional, Groom, Donald E., additional, Heetderks, Henry D., additional, Holland, Stephen E., additional, Huterer, Dragan, additional, Johnston, William E., additional, Kadel, Richard W., additional, Karcher, Armin, additional, Kim, Alex G., additional, Kolbe, William F., additional, Lafever, Robin E., additional, Lamoureux, J. I., additional, Lampton, Michael L., additional, LeFevre, Oliver, additional, Levi, Michael E., additional, Levin, Daniel S., additional, Linder, Eric V., additional, Loken, Stewart C., additional, Malina, Roger, additional, Mazure, Alain, additional, McKay, Timothy A., additional, McKee, Shawn P., additional, Miquel, Ramon, additional, Morgan, Nicholas, additional, Mortsell, E., additional, Mostek, N., additional, Mufson, Stuart, additional, Musser, J. A., additional, Roe, Natalie A., additional, Nugent, Peter E., additional, Oluseyi, Hakeem M., additional, Pain, Reynald, additional, Palaio, Nicholas P., additional, Pankow, David H., additional, Perlmutter, Saul, additional, Prieto, Eric, additional, Rabinowitz, David, additional, Refregier, Alexandre, additional, Rhodes, Jason, additional, Schubnell, Michael S., additional, Sholl, Michael, additional, Smadja, G., additional, Smith, R., additional, Smoot, George F., additional, Snyder, Jeffrey A., additional, Spadafora, Anthony, additional, Szymkowiak, Andrew, additional, Tarle, Gregory, additional, Taylor, Keith, additional, Tilquin, A., additional, Tomasch, Andrew D., additional, Vincent, D., additional, von der Lippe, Henrik, additional, Walder, Jean-Pierre, additional, and Wang, Guobin, additional

Published
2003
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33. SNAP NIR detectors

Author

Tarle, Gregory, primary, Akerlof, Carl W., additional, Aldering, Greg, additional, Amanullah, R., additional, Astier, Pierre, additional, Barrelet, E., additional, Bebek, Christopher, additional, Bergstrom, Lars, additional, Bercovitz, John, additional, Bernstein, Gary M., additional, Bester, Manfred, additional, Bonissent, Alain, additional, Bower, C. R., additional, Brown, Mark L., additional, Carithers, Jr., William C., additional, Commins, Eugene D., additional, Day, C., additional, Deustua, Susana E., additional, DiGennaro, Richard S., additional, Ealet, Anne, additional, Ellis, Richard S., additional, Eriksson, Mikael, additional, Fruchter, Andrew, additional, Genat, Jean-Francois, additional, Goldhaber, Gerson, additional, Goobar, Ariel, additional, Groom, Donald E., additional, Harris, Stewart E., additional, Harvey, Peter R., additional, Heetderks, Henry D., additional, Holland, Steven E., additional, Huterer, Dragan, additional, Karcher, Armin, additional, Kim, Alex G., additional, Kolbe, William F., additional, Krieger, B., additional, Lafever, R., additional, Lamoureux, J., additional, Lampton, Michael L., additional, Levi, Michael E., additional, Levin, Daniel S., additional, Linder, Eric V., additional, Loken, Stewart C., additional, Malina, Roger, additional, Massey, R., additional, Miquel, Ramon, additional, McKay, Timothy, additional, McKee, Shawn P., additional, Moertsell, E., additional, Mostek, N., additional, Mufson, Stuart, additional, Musser, J. A., additional, Nugent, Peter E., additional, Oluseyi, Hakeem M., additional, Pain, Reynald, additional, Palaio, Nicholas P., additional, Pankow, David H., additional, Perlmutter, Saul, additional, Pratt, R., additional, Prieto, Eric, additional, Refregier, Alexandre, additional, Rhodes, Jason, additional, Robinson, Kem E., additional, Roe, N., additional, Schubnell, Michael S., additional, Sholl, Michael, additional, Smadja, G., additional, Smoot, George F., additional, Spadafora, Anthony, additional, Tomasch, Andrew D., additional, Vincent, D., additional, von der Lippe, H., additional, Walder, J.-P., additional, and Wang, Guobin, additional

Published
2003
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34. SNAP: an integral field spectrograph for supernova identification

Author

Ealet, Anne, primary, Prieto, Eric, additional, Bonissent, Alain, additional, Malina, Roger, additional, Bernstein, G., additional, Basa, Stephane, additional, LeFevre, Oliver, additional, Mazure, Alain, additional, Bonneville, Christophe, additional, Akerlof, Carl W., additional, Aldering, Greg, additional, Amanullah, R., additional, Astier, Pierre, additional, Barrelet, E., additional, Bebek, Christopher, additional, Bergstrom, Lars, additional, Bercovitz, John, additional, Bester, Manfred, additional, Bower, C. R., additional, Carithers, Jr., William C., additional, Commins, Eugene D., additional, Day, C., additional, Deustua, Susana E., additional, DiGennaro, Richard S., additional, Ellis, R., additional, Eriksson, Mikael, additional, Fruchter, Andrew, additional, Genat, Jean-Francois, additional, Goldhaber, Gerson, additional, Goobar, Ariel, additional, Groom, Donald E., additional, Harris, Stewart E., additional, Harvey, Peter R., additional, Heetderks, Henry D., additional, Holland, Steven E., additional, Huterer, Dragan, additional, Karcher, Armin, additional, Kim, Alex G., additional, Kolbe, William F., additional, Krieger, B., additional, Lafever, R., additional, Lamoureux, J., additional, Lampton, Michael L., additional, Levi, Michael E., additional, Levin, Daniel S., additional, Linder, Eric V., additional, Loken, Stewart C., additional, Massey, R., additional, McKay, Timothy, additional, McKee, Shawn P., additional, Miquel, Ramon, additional, Moertsell, E., additional, Mostek, N., additional, Mufson, Stuart, additional, Musser, J. A., additional, Nugent, Peter E., additional, Oluseyi, Hakeem M., additional, Pain, Reynald, additional, Palaio, Nicholas P., additional, Pankow, David H., additional, Perlmutter, Saul, additional, Pratt, R., additional, Refregier, Alexandre, additional, Rhodes, J., additional, Robinson, Kem E., additional, Roe, N., additional, Sholl, Michael, additional, Schubnell, Michael S., additional, Smadja, G., additional, Smoot, George F., additional, Spadafora, Anthony, additional, Tarle, Gregory, additional, Tomasch, Andrew D., additional, von der Lippe, H., additional, Vincent, D., additional, Walder, J.-P., additional, and Wang, Guobin, additional

Published
2003
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35. SNAP focal plane

Author

Lampton, Michael L., primary, Bebek, Christopher, additional, Akerlof, Carl W., additional, Aldering, Greg, additional, Amanullah, R., additional, Astier, Pierre, additional, Barrelet, E., additional, Bergstrom, Lars, additional, Bercovitz, John, additional, Bernstein, Gary M., additional, Bester, Manfred, additional, Bonissent, Alain, additional, Bower, C. R., additional, Carithers, Jr., William C., additional, Commins, Eugene D., additional, Day, C., additional, Deustua, Susana E., additional, DiGennaro, Richard S., additional, Ealet, Anne, additional, Ellis, Richard S., additional, Eriksson, Mikael, additional, Fruchter, Andrew, additional, Genat, Jean-Francois, additional, Goldhaber, Gerson, additional, Goobar, Ariel, additional, Groom, Donald E., additional, Harris, Stewart E., additional, Harvey, Peter R., additional, Heetderks, Henry D., additional, Holland, Steven E., additional, Huterer, Dragan, additional, Karcher, Armin, additional, Kim, Alex G., additional, Kolbe, William F., additional, Krieger, B., additional, Lafever, R., additional, Lamoureux, J., additional, Levi, Michael E., additional, Levin, Daniel S., additional, Linder, Eric V., additional, Loken, Stewart C., additional, Malina, Roger, additional, Massey, R., additional, McKay, Timothy, additional, McKee, Steven M., additional, Miquel, Ramon, additional, Moertsell, E., additional, Mostek, N., additional, Mufson, Stuart, additional, Musser, J. A., additional, Nugent, Peter E., additional, Oluseyi, Hakeem M., additional, Pain, Reynald, additional, Palaio, Nicholas P., additional, Pankow, David H., additional, Perlmutter, Saul, additional, Pratt, R., additional, Prieto, Eric, additional, Refregier, Alexandre, additional, Rhodes, J., additional, Robinson, Kem E., additional, Roe, N., additional, Sholl, Michael, additional, Schubnell, Michael S., additional, Smadja, G., additional, Smoot, George F., additional, Spadafora, Anthony, additional, Tarle, Gregory, additional, Tomasch, Andrew D., additional, von der Lippe, H., additional, Vincent, D., additional, Walder, J.-P., additional, and Wang, Guobin, additional

Published
2003
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36. Wide-Field Surveys from the SNAP Mission

Author

Kim, Alex G., primary, Akerlof, Carl W., additional, Aldering, Greg, additional, Amanullah, R., additional, Astier, Pierre, additional, Barrelet, E., additional, Bebek, Christopher, additional, Bergstrom, Lars, additional, Bercovitz, J., additional, Bernstein, Gary M., additional, Bester, M., additional, Bonissent, A., additional, Bower, C., additional, Carithers, Jr., William C., additional, Commins, Eugene D., additional, Day, C., additional, Deustua, Susana E., additional, DiGennaro, R., additional, Ealet, A., additional, Ellis, Richard S., additional, Eriksson, M., additional, Fruchter, Andrew, additional, Genat, Jean-Francois, additional, Goldhaber, Gerson, additional, Goobar, Ariel, additional, Groom, Donald E., additional, Harris, Stewart E., additional, Harvey, Peter R., additional, Heetderks, Henry D., additional, Holland, Steven E., additional, Huterer, Dragan, additional, Karcher, Armin, additional, Kolbe, William F., additional, Krieger, B., additional, Lafever, Robin E., additional, Lamoureux, J., additional, Lampton, Michael L., additional, Levi, Michael E., additional, Levin, Daniel S., additional, Linder, Eric V., additional, Loken, Stewart C., additional, Malina, Roger, additional, Massey, R., additional, McKay, Timothy, additional, McKee, Shawn P., additional, Miquel, Ramon, additional, Mortsell, E., additional, Mostek, N., additional, Mufson, Stuart, additional, Musser, J. A., additional, Nugent, Peter E., additional, Oluseyi, Hakeem M., additional, Pain, Reynald, additional, Palaio, Nicholas P., additional, Pankow, David H., additional, Perlmutter, Saul, additional, Pratt, R., additional, Prieto, Eric, additional, Refregier, Alexandre, additional, Rhodes, Jason, additional, Robinson, Kem E., additional, Roe, N., additional, Sholl, Michael, additional, Schubnell, Michael S., additional, Smadja, G., additional, Smoot, George F., additional, Spadafora, Anthony, additional, Tarle, Gregory, additional, Tomasch, Andrew D., additional, von der Lippe, H., additional, Vincent, D., additional, Walder, J.-P., additional, and Wang, Guobin, additional

Published
2002
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37. Overview of the SuperNova/Acceleration Probe (SNAP)

Author

Aldering, Greg, primary, Akerlof, Carl W., additional, Amanullah, R., additional, Astier, Pierre, additional, Barrelet, E., additional, Bebek, Christopher, additional, Bergstrom, Lars, additional, Bercovitz, John, additional, Bernstein, Gary M., additional, Bester, Manfred, additional, Bonissent, Alain, additional, Bower, Charles, additional, Carithers, Jr., William C., additional, Commins, Eugene D., additional, Day, C., additional, Deustua, Susana E., additional, DiGennaro, Richard S., additional, Ealet, Anne, additional, Ellis, Richard S., additional, Eriksson, Mikael, additional, Fruchter, Andrew, additional, Genat, Jean-Francois, additional, Goldhaber, Gerson, additional, Goobar, Ariel, additional, Groom, Donald E., additional, Harris, Stewart E., additional, Harvey, Peter R., additional, Heetderks, Henry D., additional, Holland, Steven E., additional, Huterer, Dragan, additional, Karcher, Armin, additional, Kim, Alex G., additional, Kolbe, William F., additional, Krieger, B., additional, Lafever, R., additional, Lamoreux, James C., additional, Lampton, Michael L., additional, Levi, Michael E., additional, Levin, Daniel S., additional, Linder, Eric V., additional, Loken, Stewart C., additional, Malina, Roger, additional, Massey, R., additional, McKay, Timothy, additional, McKee, Shawn P., additional, Miquel, Ramon, additional, Moertsell, E., additional, Mostek, N., additional, Mufson, Stuart, additional, Musser, J. A., additional, Nugent, Peter E., additional, Oluseyi, Hakeem M., additional, Pain, Reynald, additional, Palaio, Nicholas P., additional, Pankow, David H., additional, Perlmutter, Saul, additional, Pratt, R., additional, Prieto, Eric, additional, Refregier, Alexandre, additional, Rhodes, J., additional, Robinson, Kem E., additional, Roe, N., additional, Sholl, Michael, additional, Schubnell, Michael S., additional, Smadja, G., additional, Smoot, George F., additional, Spadafora, Anthony, additional, Tarle, Gregory, additional, Tomasch, Andrew D., additional, von der Lippe, H., additional, Vincent, D., additional, Walder, J.-P., additional, and Wang, Guobin, additional

Published
2002
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38. SNAP Telescope

Author

Lampton, Michael L., primary, Akerlof, Carl W., additional, Aldering, Greg, additional, Amanullah, R., additional, Astier, Pierre, additional, Barrelet, E., additional, Bebek, Christopher, additional, Bergstrom, Lars, additional, Bercovitz, John, additional, Bernstein, G., additional, Bester, Manfred, additional, Bonissent, Alain, additional, Bower, C. R., additional, Carithers, Jr., William C., additional, Commins, Eugene D., additional, Day, C., additional, Deustua, Susana E., additional, DiGennaro, Richard S., additional, Ealet, Anne, additional, Ellis, Richard S., additional, Eriksson, Mikael, additional, Fruchter, Andrew, additional, Genat, Jean-Francois, additional, Goldhaber, Gerson, additional, Goobar, Ariel, additional, Groom, Donald E., additional, Harris, Stewart E., additional, Harvey, Peter R., additional, Heetderks, Henry D., additional, Holland, Steven E., additional, Huterer, Dragan, additional, Karcher, Armin, additional, Kim, Alex G., additional, Kolbe, William F., additional, Krieger, B., additional, Lafever, R., additional, Lamoureux, J., additional, Levi, Michael E., additional, Levin, Daniel S., additional, Linder, Eric V., additional, Loken, Stewart C., additional, Malina, Roger, additional, Massey, R., additional, McKay, Timothy, additional, McKee, Shawn P., additional, Miquel, Ramon, additional, Mortsell, E., additional, Mostek, N., additional, Mufson, Stuart, additional, Musser, J. A., additional, Nugent, Peter E., additional, Oluseyi, Hakeem M., additional, Pain, Reynald, additional, Palaio, Nicholas P., additional, Pankow, David H., additional, Perlmutter, Saul, additional, Pratt, R., additional, Prieto, Eric, additional, Refregier, Alexandre, additional, Rhodes, J., additional, Robinson, Kem E., additional, Roe, N., additional, Sholl, Michael, additional, Schubnell, Michael S., additional, Smadja, G., additional, Smoot, George F., additional, Spadafora, A., additional, Tarle, Gregory, additional, Tomasch, Andrew D., additional, von der Lippe, H., additional, Vincent, R., additional, Walder, J.-P., additional, and Wang, Guobin, additional

Published
2002
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40. Cryogenic focal plane flatness measurement with optical zone slope tracking

Author

Edelstein, Jerry, Sirk, Martin, Jelinsky, Patrick N., Besuner, Robert W., Hoff, Matthew, Perry, Paul, Heetderks, Henry D., Bebek, Christopher J., and Levi, Michael E.

Abstract

We describe a non-contact optical measurement method used to determine the surface flatness of a cryogenic sensor array developed for the JDEM mission. Large focal planes envisioned for future visible to near infra-red astronomical large area point-source surveys such as JDEM, WFIRST, or EUCLID must operate at cryogenic temperatures while maintaining focal plane flatness within a few 10's of m over half-meter scales. These constraints are imposed by sensitivity conditions that demand low noise observations from the sensors and the large-field, fast optical telescopes necessary to obtain the science yield. Verifying cryogenic focal plane flatness is challenging because m level excursions need to be measured within and across many multi-cm sized sensors using no physical contact and while situated within a high-vacuum chamber. We have used an optical metrology Shack-Hartmann scheme to measure the 36x18 cm focal plane developed for the JDEM mission at the Lawrence Berkeley National Laboratory. The focal plane holds a 4x8 array of CCDs and HgCdTe detectors. The flatness measurement scheme uses a telescope-fed micro-lens array that samples the focal plane to determine slope changes of individual sensor zones.

Published
2011
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41. A 260 megapixel visible/NIR mixed technology focal plane for space

Author

Besuner, Robert W., Bebek, Christopher J., Haller, Gunther M., Harris, Stewart E., Hart, Philip A., Heetderks, Henry D., Jelinsky, Patrick N., Lampton, Michael L., Levi, Michael E., Maldonado, Sergio E., Roe, Natalie A., Roodman, Aaron J., and Sapozhnikov, Leonid

Abstract

Mission concepts for NASA's Wide Field Infrared Survey Telescope (WFIRST)1,2, ESA's Euclid3,4mission, as well as next-generation ground-based surveys require large mosaic focal planes sensitive in both visible and near infrared (NIR) wavelengths. We have developed space-qualified detectors, readout electronics and focal plane design techniques that can be used to intermingle CCDs and NIR detectors on a single, silicon carbide (SiC) cold plate. This enables optimized, wideband observing strategies. The CCDs, developed at Lawrence Berkeley National Laboratory, are fully-depleted, pchannel devices that are backside illuminated and capable of operating at temperatures down to 120K. The NIR detectors are 1.7 m and 2.0 m wavelength cutoff H2RG® HgCdTe, manufactured by Teledyne Imaging Sensors under contract to LBNL. Both the CCDs and NIR detectors are packaged on 4-side abuttable SiC pedestals with a common mounting footprint supporting a 44 mm mosaic pitch. Both types of detectors have direct-attached readout electronics that convert the detector signal directly to serial, digital data streams and allow a flexible, low cost data acquisition strategy to enable large data rates. A mosaic of these detectors can be operated at a common temperature that achieves the required dark current and read noise performance necessary for dark energy observations. We report here the qualification testing and performance verification for a focal plane that accommodates a 4x8 array of CCDs and HgCdTe detectors.

Published
2011
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42. The DESI Experiment Part I: Science,Targeting, and Survey Design

Author

Desi, Collaboration, Aghamousa, Amir, Aguilar, Jessica, Ahlen, Steve, Alam, Shadab, Allen, Lori E., Allende Prieto, Carlos, Annis, James, Bailey, Stephen, Balland, Christophe, Ballester, Otger, Baltay, Charles, Beaufore, Lucas, Bebek, Chris, Beers, Timothy C., Bell, Eric F., Bernal, José Luis, Besuner, Robert, Beutler, Florian, Blake, Chris, Bleuler, Hannes, Blomqvist, Michael, Blum, Robert, Bolton, Adam S., Briceno, Cesar, Brooks, David, Brownstein, Joel R., Buckley-Geer, Elizabeth, Burden, Angela, Burtin, Etienne, Busca, Nicolas G., Cahn, Robert N., Cai, Yan-Chuan, Cardiel-Sas, Laia, Carlberg, Raymond G., Carton, Pierre-Henri, Casas, Ricard, Castander, Francisco J., Cervantes-Cota, Jorge L., Claybaugh, Todd M., Close, Madeline, Coker, Carl T., Cole, Shaun, Comparat, Johan, Cooper, Andrew P., Cousinou, M. -C, Crocce, Martin, Cuby, Jean-Gabriel, Cunningham, Daniel P., Davis, Tamara M., Dawson, Kyle S., La Macorra, Axel, Vicente, Juan, Delubac, Timothée, Derwent, Mark, Dey, Arjun, Dhungana, Govinda, Ding, Zhejie, Doel, Peter, Duan, Yutong T., Ealet, Anne, Edelstein, Jerry, Eftekharzadeh, Sarah, Eisenstein, Daniel J., Elliott, Ann, Escoffier, Stéphanie, Evatt, Matthew, Fagrelius, Parker, Fan, Xiaohui, Fanning, Kevin, Farahi, Arya, Farihi, Jay, Favole, Ginevra, Feng, Yu, Fernandez, Enrique, Findlay, Joseph R., Finkbeiner, Douglas P., Fitzpatrick, Michael J., Flaugher, Brenna, Flender, Samuel, Font-Ribera, Andreu, Forero-Romero, Jaime E., Fosalba, Pablo, Frenk, Carlos S., Fumagalli, Michele, Gaensicke, Boris T., Gallo, Giuseppe, Garcia-Bellido, Juan, Gaztanaga, Enrique, Pietro Gentile Fusillo, Nicola, Gerard, Terry, Gershkovich, Irena, Giannantonio, Tommaso, Gillet, Denis, Gonzalez-De-Rivera, Guillermo, Gonzalez-Perez, Violeta, Gott, Shelby, Graur, Or, Gutierrez, Gaston, Guy, Julien, Habib, Salman, Heetderks, Henry, Heetderks, Ian, Heitmann, Katrin, Hellwing, Wojciech A., Herrera, David A., Ho, Shirley, Holland, Stephen, Honscheid, Klaus, Huff, Eric, Hutchinson, Timothy A., Huterer, Dragan, Hwang, Ho Seong, Illa Laguna, Joseph Maria, Ishikawa, Yuzo, Jacobs, Dianna, Jeffrey, Niall, Jelinsky, Patrick, Jennings, Elise, Jiang, Linhua, Jimenez, Jorge, Johnson, Jennifer, Joyce, Richard, Jullo, Eric, Juneau, Stéphanie, Kama, Sami, Karcher, Armin, Karkar, Sonia, Kehoe, Robert, Kennamer, Noble, Kent, Stephen, Kilbinger, Martin, Kim, Alex G., Kirkby, David, Kisner, Theodore, Kitanidis, Ellie, Kneib, Jean-Paul, Koposov, Sergey, Kovacs, Eve, Koyama, Kazuya, Kremin, Anthony, Kron, Richard, Kronig, Luzius, Kueter-Young, Andrea, Lacey, Cedric G., Lafever, Robin, Lahav, Ofer, Lambert, Andrew, Lampton, Michael, Landriau, Martin, Lang, Dustin, Lauer, Tod R., Le Goff, Jean-Marc, Le Guillou, Laurent, Le Suu, Auguste, Lee, Jae Hyeon, Lee, Su-Jeong, Leitner, Daniela, Lesser, Michael, Levi, Michael E., L Huillier, Benjamin, Li, Baojiu, Liang, Ming, Lin, Huan, Linder, Eric, Loebman, Sarah R., Lukić, Zarija, Ma, Jun, Maccrann, Niall, Magneville, Christophe, Makarem, Laleh, Manera, Marc, Manser, Christopher J., Marshall, Robert, Martini, Paul, Massey, Richard, Matheson, Thomas, Mccauley, Jeremy, Mcdonald, Patrick, Mcgreer, Ian D., Meisner, Aaron, Metcalfe, Nigel, Miller, Timothy N., Miquel, Ramon, Moustakas, John, Myers, Adam, Naik, Milind, Newman, Jeffrey A., Nichol, Robert C., Nicola, Andrina, Nicolati Da Costa, Luiz, Nie, Jundan, Niz, Gustavo, Norberg, Peder, Nord, Brian, Norman, Dara, Nugent, Peter, O Brien, Thomas, Oh, Minji, Olsen, Knut A. G., Padilla, Cristobal, Padmanabhan, Hamsa, Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Palmese, Antonella, Pappalardo, Daniel, Pâris, Isabelle, Park, Changbom, Patej, Anna, Peacock, John A., Peiris, Hiranya V., Peng, Xiyan, Percival, Will J., Perruchot, Sandrine, Pieri, Matthew M., Pogge, Richard, Pollack, Jennifer E., Poppett, Claire, Prada, Francisco, Prakash, Abhishek, Probst, Ronald G., Rabinowitz, David, Raichoor, Anand, Ree, Chang Hee, Refregier, Alexandre, Regal, Xavier, Reid, Beth, Reil, Kevin, Rezaie, Mehdi, Rockosi, Constance M., Roe, Natalie, Ronayette, Samuel, Roodman, Aaron, Ross, Ashley J., Ross, Nicholas P., Rossi, Graziano, Rozo, Eduardo, Ruhlmann-Kleider, Vanina, Rykoff, Eli S., Sabiu, Cristiano, Samushia, Lado, Sanchez, Eusebio, Sanchez, Javier, Schlegel, David J., Schneider, Michael, Schubnell, Michael, Secroun, Aurélia, Seljak, Uros, Seo, Hee-Jong, Serrano, Santiago, Shafieloo, Arman, Shan, Huanyuan, Sharples, Ray, Sholl, Michael J., Shourt, William V., Silber, Joseph H., Silva, David R., Sirk, Martin M., Slosar, Anze, Smith, Alex, Smoot, George F., Som, Debopam, Song, Yong-Seon, Sprayberry, David, Staten, Ryan, Stefanik, Andy, Tarle, Gregory, Sien Tie, Suk, Tinker, Jeremy L., Tojeiro, Rita, Valdes, Francisco, Valenzuela, Octavio, Valluri, Monica, Vargas-Magana, Mariana, Verde, Licia, Walker, Alistair R., Wang, Jiali, Wang, Yuting, Weaver, Benjamin A., Weaverdyck, Curtis, Wechsler, Risa H., Weinberg, David H., White, Martin, Yang, Qian, Yeche, Christophe, Zhang, Tianmeng, Zhao, Gong-Bo, Zheng, Yi, Zhou, Xu, Zhou, Zhimin, Zhu, Yaling, Zou, Hu, and Ying Zu

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), astro-ph.CO, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, astro-ph.IM
Abstract

DESI (Dark Energy Spectroscopic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations (BAO) and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. To trace the underlying dark matter distribution, spectroscopic targets will be selected in four classes from imaging data. We will measure luminous red galaxies up to $z=1.0$. To probe the Universe out to even higher redshift, DESI will target bright [O II] emission line galaxies up to $z=1.7$. Quasars will be targeted both as direct tracers of the underlying dark matter distribution and, at higher redshifts ($ 2.1 < z < 3.5$), for the Ly-$��$ forest absorption features in their spectra, which will be used to trace the distribution of neutral hydrogen. When moonlight prevents efficient observations of the faint targets of the baseline survey, DESI will conduct a magnitude-limited Bright Galaxy Survey comprising approximately 10 million galaxies with a median $z\approx 0.2$. In total, more than 30 million galaxy and quasar redshifts will be obtained to measure the BAO feature and determine the matter power spectrum, including redshift space distortions.

43. The DESI Experiment Part II: Instrument Design

Author

Desi, Collaboration, Aghamousa, Amir, Aguilar, Jessica, Ahlen, Steve, Alam, Shadab, Allen, Lori E., Allende Prieto, Carlos, Annis, James, Bailey, Stephen, Balland, Christophe, Ballester, Otger, Baltay, Charles, Beaufore, Lucas, Bebek, Chris, Beers, Timothy C., Bell, Eric F., Bernal, José Luis, Besuner, Robert, Beutler, Florian, Blake, Chris, Bleuler, Hannes, Blomqvist, Michael, Blum, Robert, Bolton, Adam S., Briceno, Cesar, Brooks, David, Brownstein, Joel R., Buckley-Geer, Elizabeth, Burden, Angela, Burtin, Etienne, Busca, Nicolas G., Cahn, Robert N., Cai, Yan-Chuan, Cardiel-Sas, Laia, Carlberg, Raymond G., Carton, Pierre-Henri, Casas, Ricard, Castander, Francisco J., Cervantes-Cota, Jorge L., Claybaugh, Todd M., Close, Madeline, Coker, Carl T., Cole, Shaun, Comparat, Johan, Cooper, Andrew P., Cousinou, M. -C, Crocce, Martin, Cuby, Jean-Gabriel, Cunningham, Daniel P., Davis, Tamara M., Dawson, Kyle S., La Macorra, Axel, Vicente, Juan, Delubac, Timothée, Derwent, Mark, Dey, Arjun, Dhungana, Govinda, Ding, Zhejie, Doel, Peter, Duan, Yutong T., Ealet, Anne, Edelstein, Jerry, Eftekharzadeh, Sarah, Eisenstein, Daniel J., Elliott, Ann, Escoffier, Stéphanie, Evatt, Matthew, Fagrelius, Parker, Fan, Xiaohui, Fanning, Kevin, Farahi, Arya, Farihi, Jay, Favole, Ginevra, Feng, Yu, Fernandez, Enrique, Findlay, Joseph R., Finkbeiner, Douglas P., Fitzpatrick, Michael J., Flaugher, Brenna, Flender, Samuel, Font-Ribera, Andreu, Forero-Romero, Jaime E., Fosalba, Pablo, Frenk, Carlos S., Fumagalli, Michele, Gaensicke, Boris T., Gallo, Giuseppe, Garcia-Bellido, Juan, Gaztanaga, Enrique, Pietro Gentile Fusillo, Nicola, Gerard, Terry, Gershkovich, Irena, Giannantonio, Tommaso, Gillet, Denis, Gonzalez-De-Rivera, Guillermo, Gonzalez-Perez, Violeta, Gott, Shelby, Graur, Or, Gutierrez, Gaston, Guy, Julien, Habib, Salman, Heetderks, Henry, Heetderks, Ian, Heitmann, Katrin, Hellwing, Wojciech A., Herrera, David A., Ho, Shirley, Holland, Stephen, Honscheid, Klaus, Huff, Eric, Hutchinson, Timothy A., Huterer, Dragan, Hwang, Ho Seong, Illa Laguna, Joseph Maria, Ishikawa, Yuzo, Jacobs, Dianna, Jeffrey, Niall, Jelinsky, Patrick, Jennings, Elise, Jiang, Linhua, Jimenez, Jorge, Johnson, Jennifer, Joyce, Richard, Jullo, Eric, Juneau, Stéphanie, Kama, Sami, Karcher, Armin, Karkar, Sonia, Kehoe, Robert, Kennamer, Noble, Kent, Stephen, Kilbinger, Martin, Kim, Alex G., Kirkby, David, Kisner, Theodore, Kitanidis, Ellie, Kneib, Jean-Paul, Koposov, Sergey, Kovacs, Eve, Koyama, Kazuya, Kremin, Anthony, Kron, Richard, Kronig, Luzius, Kueter-Young, Andrea, Lacey, Cedric G., Lafever, Robin, Lahav, Ofer, Lambert, Andrew, Lampton, Michael, Landriau, Martin, Lang, Dustin, Lauer, Tod R., Le Goff, Jean-Marc, Le Guillou, Laurent, Le Suu, Auguste, Lee, Jae Hyeon, Lee, Su-Jeong, Leitner, Daniela, Lesser, Michael, Levi, Michael E., L Huillier, Benjamin, Li, Baojiu, Liang, Ming, Lin, Huan, Linder, Eric, Loebman, Sarah R., Lukić, Zarija, Ma, Jun, Maccrann, Niall, Magneville, Christophe, Makarem, Laleh, Manera, Marc, Manser, Christopher J., Marshall, Robert, Martini, Paul, Massey, Richard, Matheson, Thomas, Mccauley, Jeremy, Mcdonald, Patrick, Mcgreer, Ian D., Meisner, Aaron, Metcalfe, Nigel, Miller, Timothy N., Miquel, Ramon, Moustakas, John, Myers, Adam, Naik, Milind, Newman, Jeffrey A., Nichol, Robert C., Nicola, Andrina, Nicolati Da Costa, Luiz, Nie, Jundan, Niz, Gustavo, Peder Norberg, Nord, Brian, Norman, Dara, Nugent, Peter, O Brien, Thomas, Oh, Minji, Olsen, Knut A. G., Padilla, Cristobal, Padmanabhan, Hamsa, Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Palmese, Antonella, Pappalardo, Daniel, Pâris, Isabelle, Park, Changbom, Patej, Anna, Peacock, John A., Peiris, Hiranya V., Peng, Xiyan, Percival, Will J., Perruchot, Sandrine, Pieri, Matthew M., Pogge, Richard, Pollack, Jennifer E., Poppett, Claire, Prada, Francisco, Prakash, Abhishek, Probst, Ronald G., Rabinowitz, David, Raichoor, Anand, Ree, Chang Hee, Refregier, Alexandre, Regal, Xavier, Reid, Beth, Reil, Kevin, Rezaie, Mehdi, Rockosi, Constance M., Roe, Natalie, Ronayette, Samuel, Roodman, Aaron, Ross, Ashley J., Ross, Nicholas P., Rossi, Graziano, Rozo, Eduardo, Ruhlmann-Kleider, Vanina, Rykoff, Eli S., Sabiu, Cristiano, Samushia, Lado, Sanchez, Eusebio, Sanchez, Javier, Schlegel, David J., Schneider, Michael, Schubnell, Michael, Secroun, Aurélia, Seljak, Uros, Seo, Hee-Jong, Serrano, Santiago, Shafieloo, Arman, Shan, Huanyuan, Sharples, Ray, Sholl, Michael J., Shourt, William V., Silber, Joseph H., Silva, David R., Sirk, Martin M., Slosar, Anze, Smith, Alex, Smoot, George F., Som, Debopam, Song, Yong-Seon, Sprayberry, David, Staten, Ryan, Stefanik, Andy, Tarle, Gregory, Sien Tie, Suk, Tinker, Jeremy L., Tojeiro, Rita, Valdes, Francisco, Valenzuela, Octavio, Valluri, Monica, Vargas-Magana, Mariana, Verde, Licia, Walker, Alistair R., Wang, Jiali, Wang, Yuting, Weaver, Benjamin A., Weaverdyck, Curtis, Wechsler, Risa H., Weinberg, David H., White, Martin, Yang, Qian, Yeche, Christophe, Zhang, Tianmeng, Zhao, Gong-Bo, Zheng, Yi, Zhou, Xu, Zhou, Zhimin, Zhu, Yaling, Zou, Hu, Zu, Ying, Korea Astronomy and Space Science Institute (KASI), University of California [Berkeley] (UC Berkeley), University of California (UC), Boston University [Boston] (BU), Carnegie Mellon University [Pittsburgh] (CMU), University of Edinburgh, National Optical Astronomy Observatory (NOAO), Instituto de Astrofisica de Canarias (IAC), Fermi National Accelerator Laboratory (Fermilab), Lawrence Berkeley National Laboratory [Berkeley] (LBNL), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Física d’Altes Energies [Barcelone] (IFAE), Universitat Autònoma de Barcelona (UAB), Yale University [New Haven], Ohio State University [Columbus] (OSU), The University of Notre Dame [Sydney], Department of Astronomy, University of Michigan, University of Michigan [Ann Arbor], University of Michigan System-University of Michigan System, Institut de Ciencies del Cosmos (ICCUB), Universitat de Barcelona (UB), Space Sciences Laboratory [Berkeley] (SSL), University of California (UC)-University of California (UC), University of Portsmouth, Centre for Astrophysics & Supercomputing, Swinburne University of Technology (Hawthorn campus), Ecole Polytechnique Fédérale de Lausanne (EPFL), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), The University of Utah, Cerro Tololo Inter-American Observatory, University College of London [London] (UCL), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, APC - Cosmologie, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institute for Astronomy [Edinburgh] (IfA), Department of Astronomy & Astrophysics [University of Toronto], University of Toronto, Institut de Ciencies de l'Espai [Barcelona] (ICE-CSIC), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Carreterra Mexico-Toluca, Department of Physics [Durham University], Durham University, Department of Astronomy, The Ohio State University, Institute for Computational Cosmology (ICC), Instituto de Fisica Teorica C-XVI (IFT-UAM/CSIC), Universidad Autónoma de Madrid (UAM), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM), Department of Applied Physics, Departamento de Fisica Aplicada [Granada], Universidad de Granada = University of Granada (UGR)-Universidad de Granada = University of Granada (UGR), University of Wyoming (UW), Harvard-Smithsonian Center for Astrophysics (CfA), Harvard University-Smithsonian Institution, Arizona State University [Tempe] (ASU), Department of Physics, University of California, University of California [Los Angeles] (UCLA), Institute for Astronomy [Honolulu], University of Hawai‘i [Mānoa] (UHM), Department of Physics [Durham], University of New Hampshire (UNH), Departamento de Fisica Teorica, Korea Institute for Advanced Study (KIAS), Centre d'Immunologie et des Maladies Infectieuses (CIMI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Department of Physics and Astronomy [Irvine], University of California [Irvine] (UC Irvine), Institute of Astronomy [Cambridge], University of Cambridge [UK] (CAM), Institute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouth, Observatoire de Haute-Provence (OHP), Institut Pythéas (OSU PYTHEAS), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Center for Cosmology & AstroParticle Physics, Department of Physics and Astronomy [Pittsburgh], University of Pittsburgh (PITT), Pennsylvania Commonwealth System of Higher Education (PCSHE)-Pennsylvania Commonwealth System of Higher Education (PCSHE), Institute for Astronomy [Zürich], Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), School of Physics and Astronomy [Nottingham], University of Nottingham, UK (UON), School of Physics, University of Waterloo [Waterloo], Department of Astronomy and Space Science [Sejong University], Sejong University, Brookhaven National Laboratory [Upton, NY] (BNL), UT-Battelle, LLC-Stony Brook University [SUNY] (SBU), State University of New York (SUNY)-State University of New York (SUNY)-U.S. Department of Energy [Washington] (DOE), Department of Physics [Ann Arbor], University of St Andrews [Scotland], University of Science and Technology of China [Hefei] (USTC), Department of Computer Science and Engineering [Minneapolis], University of Minnesota [Twin Cities] (UMN), University of Minnesota System-University of Minnesota System, Karlsruhe Institute of Technology (KIT), Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Shandong University, National University of Defense Technology [China], Avidea Technologies, Inc, DESI Collaboration, Okayama University, University of California [Berkeley], University of California, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), University of California-University of California, Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Universidad Autonoma de Madrid (UAM), Universidad Nacional Autónoma de México (UNAM), Universidad de Granada (UGR)-Universidad de Granada (UGR), Harvard University [Cambridge]-Smithsonian Institution, Centre d'Immunologie et de Maladies Infectieuses (CIMI), University of California [Irvine] (UCI), U.S. Department of Energy [Washington] (DOE)-UT-Battelle, LLC-Stony Brook University [SUNY] (SBU), State University of New York (SUNY)-State University of New York (SUNY), and Escoffier, Stephanie

Subjects
[SDU.ASTR.IM] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Cosmology and Nongalactic Astrophysics (astro-ph.CO), astro-ph.CO, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), astro-ph.IM, Astrophysics - Cosmology and Nongalactic Astrophysics, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]
Abstract

DESI (Dark Energy Spectropic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. The DESI instrument is a robotically-actuated, fiber-fed spectrograph capable of taking up to 5,000 simultaneous spectra over a wavelength range from 360 nm to 980 nm. The fibers feed ten three-arm spectrographs with resolution $R= \lambda/\Delta\lambda$ between 2000 and 5500, depending on wavelength. The DESI instrument will be used to conduct a five-year survey designed to cover 14,000 deg$^2$. This powerful instrument will be installed at prime focus on the 4-m Mayall telescope in Kitt Peak, Arizona, along with a new optical corrector, which will provide a three-degree diameter field of view. The DESI collaboration will also deliver a spectroscopic pipeline and data management system to reduce and archive all data for eventual public use.

44. BigBOSS: The Ground-Based Stage IV Dark Energy Experiment

Author

Schlegel, David J., Bebek, Chris, Heetderks, Henry, Ho, Shirley, Lampton, Michael, Levi, Michael, Mostek, Nick, Padmanabhan, Nikhil, Perlmutter, Saul, Roe, Natalie, Sholl, Michael, Smoot, George, White, Martin, Dey, Arjun, Abraham, Tony, Jannuzi, Buell, Joyce, Dick, Liang, Ming, Merrill, Mike, Knut Olsen, and Salim, Samir

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The BigBOSS experiment is a proposed DOE-NSF Stage IV ground-based dark energy experiment to study baryon acoustic oscillations (BAO) and the growth of structure with an all-sky galaxy redshift survey. The project is designed to unlock the mystery of dark energy using existing ground-based facilities operated by NOAO. A new 4000-fiber R=5000 spectrograph covering a 3-degree diameter field will measure BAO and redshift space distortions in the distribution of galaxies and hydrogen gas spanning redshifts from 0.2, Comment: 20 pages

45. The DESI fiber positioner system

Author

Evans, Christopher J., Simard, Luc, Takami, Hideki, Schubnell, Michael, Ameel, Jon, Besuner, Robert W., Gershkovich, Irena, Heetderks, Henry D., Hoerler, Philipp, Kneib, Jean-Paul, Heetderks, Henry D., Silber, Joseph H., Tarlé, Gregory, and Weaverdyck, Curtis

Published
2016
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