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4 results on '"Nick Mostek"'

1. BigBOSS: The Ground-Based Stage IV BAO Experiment

Author

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

Subjects
Baryon, Redshift-space distortions, Physics, Astrophysics::Instrumentation and Methods for Astrophysics, Dark energy, Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Baryon acoustic oscillations, Redshift survey, Spectrograph, Galaxy, Redshift
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< z< 3.5. The Dark Energy Task Force figure of merit (DETF FoM) for this experiment is expected to be equal to that of a JDEM mission for BAO with the lower risk and cost typical of a ground-based experiment.

Published
2009
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2. Supernova / Acceleration Probe: a Satellite Experiment to Study the Nature of the Dark Energy

Author

William W. Craig, Eric Prieto, A. L. Spadafora, A. S. Fruchter, T. Diehl, Gregory Tarle, M. E. Levi, N. Palaio, Susana E. Deustua, Josh Frieman, G. Samdja, Alain Mazure, M. L. Lampton, L. Gladney, Armin Karcher, H. Heetderks, N. Kuznetsova, Eric V. Linder, Edvard Mörtsell, D. W. Gerdes, Douglas L. Tucker, Christopher Stoughton, O. Le Fevre, Saul Perlmutter, Michael L. Brown, Steven E. Kahn, J. I. Lamoureux, Guofeng Wang, Scott Dodelson, Roger F. Malina, D. Rusin, Natalie A. Roe, C. Baltay, Nick Mostek, Dragan Huterer, G. Goldhaber, S. C. Loken, J. P. Marriner, R. Lafever, Hakeem M. Oluseyi, Ralph C. Bohlin, S. T. Holland, A. D. Tomasch, H. von der Lippe, Bhuvnesh Jain, Patrick N. Jelinsky, G. Kushner, E. Basa, John Peoples, Peter Nugent, Jason Rhodes, J. Annis, Greg Aldering, R. Pain, B. Krieger, Alain Bonissent, Keith Taylor, C. R. Bower, F. DeJongh, S. L. Mufson, V. Scarpine, E. Barrelet, D. E. Groom, J.-P. Walder, W. Emmet, Michael Sholl, L. Hui, Lars Bergström, Gary Bernstein, J. A. Musser, W. C. Wester, D. Rabinowitz, M. Hoff, Shawn McKee, J. Snyder, Andrew Szymkowiak, Eugene D. Commins, David H. Pankow, Philip J. Marshall, Timothy A. McKay, N. Morgan, Manfred Bester, Wolfgang Lorenzon, C. T. Day, Andre Tilquin, M.E. Huffer, Roger Smith, Dominique Fouchez, D. Vincent, M. Campbell, A. Goobar, Steve Kent, A. Stebbine, Richard Ellis, Ramon Miquel, William Carithers, Richard Massey, Roger Blandford, Alex G. Kim, P. Limon, H. Lin, A. Refregier, Chris Bebek, Anne Ealet, Pierre Astier, W. Althouse, William F. Kolbe, Michael Schubnell, Rahman Amanullah, George F. Smoot, and C. Bigelow

Subjects
Physics, 010308 nuclear & particles physics, Astronomy, Shape of the universe, Astrophysics::Cosmology and Extragalactic Astrophysics, Cosmological constant, Astrophysics, 7. Clean energy, 01 natural sciences, Galaxy, Redshift, Gravitational lens, Vacuum energy, 13. Climate action, 0103 physical sciences, Dark energy, 010303 astronomy & astrophysics, Weak gravitational lensing
Abstract

The Supernova/Acceleration Probe (SNAP) is a proposed space-based experiment designed to study the dark energy and alternative explanations of the acceleration of the Universe's expansion by performing a series of complementary systematics-controlled astrophysical measurements. We here describe a self-consistent reference mission design that can accomplish this goal with the two leading measurement approaches being the Type Ia supernova Hubble diagram and a wide-area weak gravitational lensing survey. This design has been optimized to first order and is now under study for further modification and optimization. A 2-m three-mirror anastigmat wide-field telescope feeds a focal plane consisting of a 0.7 square-degree imager tiled with equal areas of optical CCDs and near infrared sensors, and a high-efficiency low-resolution integral field spectrograph. The instrumentation suite provides simultaneous discovery and light-curve measurements of supernovae and then can target individual objects for detailed spectral characterization. The SNAP mission will discover thousands of Type Ia supernovae out to z = 3 and will obtain high-signal-to-noise calibrated light-curves and spectra for a subset of > 2000 supernovae at redshifts between z = 0.1 and 1.7 in a northern field and in a southern field. A wide-field survey covering one thousand square degrees in both northern and southern fields resolves {approx} 100 galaxies per square arcminute, or a total of more than 300 million galaxies. With the PSF stability afforded by a space observatory, SNAP will provide precise and accurate measurements of gravitational lensing. The high-quality data available in space, combined with the large sample of supernovae, will enable stringent control of systematic uncertainties. The resulting data set will be used to determine the energy density of dark energy and parameters that describe its dynamical behavior. The data also provide a direct test of theoretical models for the dark energy, including discrimination of vacuum energy due to the cosmological constant and various classes of dynamical scalar fields. If we assume we live in a cosmological-constant-dominated Universe, the matter density, dark energy density, and flatness of space can all be measured with SNAP supernova and weak-lensing measurements to a systematics-limited accuracy of 1%. For a flat universe, the density-to-pressure ratio of dark energy or equation of state w(z) can be similarly measured to 5% for the present value w{sub 0} and {approx} 0.1 for the time variation w' {triple_bond} dw/d ln a|{sub z=1}. For a fiducial SUGRA-inspired universe, w{sub 0} and w' can be measured to an even tighter uncertainty of 0.03 and 0.06 respectively. Note that no external priors are needed. As more accurate theoretical predictions for the small-scale weak-lensing shear develop, the conservative estimates adopted here for space-based systematics should improve, allowing even tighter constraints. While the survey strategy is tailored for supernova and weak gravitational lensing observations, the large survey area, depth, spatial resolution, time-sampling, and nine-band optical to NIR photometry will support additional independent and/or complementary dark-energy measurement approaches as well as a broad range of auxiliary science programs.

Published
2005
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3. Supernova Acceleration Probe: Studying Dark Energy with Type Ia Supernovae

Author

P. Limon, Albert Stebbins, Ralph C. Bohlin, Douglas L. Tucker, Armin Karcher, H. Heetderks, Edvard Mörtsell, H. Lin, G. Smadja, J. Musser, C. T. Day, T. Davies, Andre Tilquin, H. von der Lippe, B. Besuner, Martin White, Justin Albert, M. L. Lampton, N. Kuznetsova, A. Refregier, N. Palaio, Susana E. Deustua, L. Gladney, G. Goldhaber, Alex G. Kim, Roger F. Malina, Nick Mostek, Chris Bebek, V. Scarpine, D. Cole, William Carithers, A. D. Tomasch, Richard Massey, Bhuvnesh Jain, Keith Taylor, Roger Blandford, J. P. Marriner, Greg Aldering, David H. Pankow, Michael Seiffert, Eric Prieto, C. R. Bower, Alain Bonissent, Peter Nugent, D. Figer, R. Lafever, John Peoples, D. Vincent, M. Campbell, Stephen Bailey, Michael Sholl, B. Krieger, Alain Mazure, J. I. Lamoureux, M.E. Huffer, Anne Ealet, N. Morgan, S. C. Loken, Dominique Fouchez, A. S. Fruchter, M. Deharveng, V. Lebrun, O. Le Fevre, F. DeJongh, Guofeng Wang, Andrew Szymkowiak, J. Snyder, L. Marian, D. Rusin, Natalie A. Roe, Wolfgang Lorenzon, M. E. Levi, P. Jelinsky, Ramon Miquel, E. Barrelet, L. Hui, W. Emmet, R. Nakajima, Roger Smith, G. Tarle, C. Baltay, Stéphane Basa, Michael L. Brown, Hakeem M. Oluseyi, Christopher Stoughton, S. Allam, S. L. Mufson, M. Frerking, Steven E. Kahn, C. Juramy, W. C. Wester, D. Rabinowitz, D. Peterson, Scott Dodelson, Lars Bergström, H. Shuka, F. Stabenau, B. Bigelow, A. Goobar, Michael Schubnell, B. Mcginnis, M. Hoff, D. E. Groom, Steve Kent, Rahman Amanullah, J.-P. Walder, Saul Perlmutter, Richard Ellis, G. Kushner, Eugene D. Commins, Manfred Bester, Gary Bernstein, Shawn McKee, M. Aumeunier, Philip J. Marshall, A. L. Spadafora, T. Dobson, T. Diehl, B. Mobqsher, D. W. Gerdes, Pierre Astier, W. Althouse, William F. Kolbe, Josh Frieman, Eric V. Linder, Timothy A. McKay, George F. Smoot, William W. Craig, Dragan Huterer, S. T. Holland, A. Weinstein, Jason Rhodes, J. Annis, R. Pain, 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), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), SNAP, Flores, Sylvie, Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Type (model theory), [SDU.ASTR] Sciences of the Universe [physics]/Astrophysics [astro-ph], 01 natural sciences, 7. Clean energy, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Acceleration, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, 010306 general physics, Computer Science::Distributed, Parallel, and Cluster Computing, media_common, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Astrophysics (astro-ph), Astronomy, Universe, Supernova, [PHYS.ASTR.CO] Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Dark energy
Abstract

The Supernova Acceleration Probe (SNAP) will use Type Ia supernovae (SNe Ia) as distance indicators to measure the effect of dark energy on the expansion history of the Universe. (SNAP's weak-lensing program is described in a companion White Paper.) The experiment exploits supernova distance measurements up to their fundamental systematic limit; strict requirements on the monitoring of each supernova's properties lead to the need for a space-based mission. Results from pre-SNAP experiments, which characterize fundamental SN Ia properties, will be used to optimize the SNAP observing strategy to yield data, which minimize both systematic and statistical uncertainties. SNAP has achieved technological readiness and the collaboration is poised to begin construction., Comment: 12 pages, 4 figures; White paper to the Dark Energy Task Force

Published
2005
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4. Seeing the Nature of the Accelerating Physics: It's a SNAP

Author

D. Figer, D. Vincent, M. Campbell, Christopher Stoughton, Peter Nugent, George F. Smoot, A. L. Spadafora, M.E. Huffer, M. Frerking, Armin Karcher, Laura Marian, Andrew Szymkowiak, B. Besuner, Martin White, Saul Perlmutter, Alex G. Kim, Kyle Dawson, T. Dobson, R. Nakajima, Stéphane Basa, Michael L. Brown, Keith Taylor, Eric Prieto, Wolfgang Lorenzon, Steven E. Kahn, C. Juramy, P. Limon, C. R. Bower, C. Baltay, Nick Mostek, Roger Smith, S. C. Loken, G. Kushner, Hakeem M. Oluseyi, M. Deharveng, N. Palaio, Eric V. Linder, Susana E. Deustua, H. Lin, G. Smadja, J.-P. Walder, Gerson Goldhaber, M. Aumeunier, Gary Bernstein, H. von der Lippe, Timothy A. McKay, Philip J. Marshall, Pierre Astier, A. Refregier, Chris Bebek, Bahram Mobasher, E. Barrelet, Shawn McKee, J. Albert, Dominique Fouchez, W. Althouse, L. Gladney, R. Lafever, V. Scarpine, D. Cole, John Peoples, William F. Kolbe, B. Krieger, B. Bigelow, M. L. Lampton, N. Kuznetsova, L. Hui, Eugene D. Commins, Guofeng Wang, Tamara M. Davis, H. T. Diehl, Manfred Bester, Reynald Pain, Don Frederic DeJongh, W. Emmet, J. P. Marriner, D. Rabinowitz, Hemant Shukla, O. Le Fevre, S. Allam, Alain Mazure, S. Mufson, Edvard Mörtsell, Michael Levi, David H. Pankow, N. Morgan, H. Heetderks, Ariel Goobar, Albert Stebbins, B. Mcginnis, Richard Ellis, Andre Tilquin, William Wester, Douglas L. Tucker, Joshua A. Frieman, Ramon Miquel, C. T. Day, Bhuvnesh Jain, Steve Kent, D. Peterson, P. Jelinsky, Michael Schubnell, William Carithers, Rahman Amanullah, Richard Massey, Donald E. Groom, Roger Blandford, Roger F. Malina, A. D. Tomasch, G. Tarle, Greg Aldering, Alain Bonissent, Michael Sholl, V. Lebrun, Ralph C. Bohlin, Michael Seiffert, Stephen Bailey, J. I. Lamoureux, J. Snyder, William W. Craig, M. Hoff, Dragan Huterer, S. T. Holland, A. Weinstein, Jason Rhodes, J. Annis, D. W. Gerdes, D. Rusin, Natalie A. Roe, L. Bergstom, Scott Dodelson, F. Stabenau, A. S. Fruchter, and J. Musser

Subjects
Physics, Acceleration, Supernova, Dark energy, Astrophysics::Cosmology and Extragalactic Astrophysics, Cosmological constant, Astrophysics, Computer Science::Distributed, Parallel, and Cluster Computing, True insight
Abstract

For true insight into the nature of dark energy, measurements of the precision and accuracy of the Supernova/Acceleration Probe (SNAP) are required. Precursor or scaled-down experiments are unavoidably limited, even for distinguishing the cosmological constant. They can pave the way for, but should not delay, SNAP by developing calibration, refinement, and systematics control (and they will also provide important, exciting astrophysics).

Published
2005
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