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1. Detection and Characterization of Oscillating Red Giants: First Results from the TESS Satellite

Author

National Aeronautics and Space Administration (US), Ministerio de Economía y Competitividad (España), European Commission, European Research Council, Danish National Research Foundation, European Space Agency, Aarhus University Research Foundation, National Science Foundation (US), Carlsberg Foundation, Fundação para a Ciência e a Tecnologia (Portugal), Aguirre, Víctor Silva, Stello, Dennis, Stokholm, Amalie, Mosumgaard, Jakob R., Ball, Warrick H., Basu, Sarbani, Bossini, Diego, Bugnet, Lisa, Buzasi, Derek, Campante, Tiago L., Carboneau, Lindsey, Chaplin, William J., Corsaro, Enrico, Davies, Guy R., Elsworth, Yvonne P., García, Rafael A., Gaulme, Patrick, Hall, Oliver J., Handberg, Rasmus, Hon, Marc, Kallinger, Thomas, Kang, Liu, Lund, Mikkel N., Mathur, Savita, Mints, Alexey, Mosser, Benoît, Çelik Orhan, Zeynep, Rodrigues, Thaíse S., Vrard, Mathieu, Yıldız, Mutlu, Zinn, Joel C., Örtel, Sibel, Beck, Paul G., Bell, Keaton J., Guo, Zhao, Jiang, Chen, Kuszlewicz, James S., Kuehn, Charles A., Li, Tanda, Lundkvist, Mia S., Pinsonneault, Marc, Tayar, Jamie, Cunha, Margarida S., Hekker, Saskia, Huber, Daniel, Miglio, Andrea, Monteiro, Mario J.P.F.G., Slumstrup, Ditte, Winther, Mark L., Angelou, George, Benomar, Othman, Bódi, Attila, De Moura, Bruno L., Deheuvels, Sébastien, Derekas, Aliz, Di Mauro, Maria Pia, Dupret, Marc-Antoine, Jiménez, Antonio, Lebreton, Yveline, Matthews, Jaymie, Nardetto, Nicolas, do Nascimento, Jose D., Jr., Pereira, Filipe, Rodríguez Díaz, Luisa F., Serenelli, Aldo, Spitoni, Emanuele, Stonkutė, Edita, Suárez Yanes, Juan Carlos, Szabó, Robert, Van Eylen, Vincent, Ventura, Rita, Verma, Kuldeep, Weiss, Achim, Wu, Tao, Barclay, Thomas, Christensen-Dalsgaard, Jørgen, Jenkins, Jon M., Kjeldsen, Hans, Ricker, George R., Seager, Sara, Vanderspek, Roland, National Aeronautics and Space Administration (US), Ministerio de Economía y Competitividad (España), European Commission, European Research Council, Danish National Research Foundation, European Space Agency, Aarhus University Research Foundation, National Science Foundation (US), Carlsberg Foundation, Fundação para a Ciência e a Tecnologia (Portugal), Aguirre, Víctor Silva, Stello, Dennis, Stokholm, Amalie, Mosumgaard, Jakob R., Ball, Warrick H., Basu, Sarbani, Bossini, Diego, Bugnet, Lisa, Buzasi, Derek, Campante, Tiago L., Carboneau, Lindsey, Chaplin, William J., Corsaro, Enrico, Davies, Guy R., Elsworth, Yvonne P., García, Rafael A., Gaulme, Patrick, Hall, Oliver J., Handberg, Rasmus, Hon, Marc, Kallinger, Thomas, Kang, Liu, Lund, Mikkel N., Mathur, Savita, Mints, Alexey, Mosser, Benoît, Çelik Orhan, Zeynep, Rodrigues, Thaíse S., Vrard, Mathieu, Yıldız, Mutlu, Zinn, Joel C., Örtel, Sibel, Beck, Paul G., Bell, Keaton J., Guo, Zhao, Jiang, Chen, Kuszlewicz, James S., Kuehn, Charles A., Li, Tanda, Lundkvist, Mia S., Pinsonneault, Marc, Tayar, Jamie, Cunha, Margarida S., Hekker, Saskia, Huber, Daniel, Miglio, Andrea, Monteiro, Mario J.P.F.G., Slumstrup, Ditte, Winther, Mark L., Angelou, George, Benomar, Othman, Bódi, Attila, De Moura, Bruno L., Deheuvels, Sébastien, Derekas, Aliz, Di Mauro, Maria Pia, Dupret, Marc-Antoine, Jiménez, Antonio, Lebreton, Yveline, Matthews, Jaymie, Nardetto, Nicolas, do Nascimento, Jose D., Jr., Pereira, Filipe, Rodríguez Díaz, Luisa F., Serenelli, Aldo, Spitoni, Emanuele, Stonkutė, Edita, Suárez Yanes, Juan Carlos, Szabó, Robert, Van Eylen, Vincent, Ventura, Rita, Verma, Kuldeep, Weiss, Achim, Wu, Tao, Barclay, Thomas, Christensen-Dalsgaard, Jørgen, Jenkins, Jon M., Kjeldsen, Hans, Ricker, George R., Seager, Sara, and Vanderspek, Roland

Abstract

Since the onset of the "space revolution" of high-precision high-cadence photometry, asteroseismology has been demonstrated as a powerful tool for informing Galactic archeology investigations. The launch of the NASA Transiting Exoplanet Survey Satellite (TESS) mission has enabled seismic-based inferences to go full sky-providing a clear advantage for large ensemble studies of the different Milky Way components. Here we demonstrate its potential for investigating the Galaxy by carrying out the first asteroseismic ensemble study of red giant stars observed by TESS. We use a sample of 25 stars for which we measure their global asteroseimic observables and estimate their fundamental stellar properties, such as radius, mass, and age. Significant improvements are seen in the uncertainties of our estimates when combining seismic observables from TESS with astrometric measurements from the Gaia mission compared to when the seismology and astrometry are applied separately. Specifically, when combined we show that stellar radii can be determined to a precision of a few percent, masses to 5%-10%, and ages to the 20% level. This is comparable to the precision typically obtained using end-of-mission Kepler data. © 2020. The American Astronomical Society. All rights reserved.

Published
2020

2. The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the Extended Baryon Oscillation Spectroscopic Survey and from the Second Phase of the Apache Point Observatory Galactic Evolution Experiment

Author

Alfred P. Sloan Foundation, Department of Energy (US), University of Utah, Abolfathi, Bela, Aguado, D. S., Aguilar, Gabriela, Allende Prieto, Carlos, Almeida, Andres, Ananna, Tonima Tasnim, Anders, Friedrich, Anderson, Scott F., Andrews, Brett H., Anguiano, Borja, Aragón-Salamanca, Alfonso, Thakar, Aniruddha R., Thomas, Daniel, Mariappan, Vivek, Tissera, Patricia, Tojeiro, Rita, Dell'Agli, Flavia, Tremonti, Christy, Troup, Nicholas W., Frinchaboy, Peter, Lacerna, Ivan, Pieri, Matthew M., Barger, Kathleen A., Urry, Meg, Bershady, Matthew A., Valenzuela, O., van den Bosch, Remco, Vargas-González, Jaime, Marques-Chaves, Rui, Delubac, Timothée, Vargas Magaña, Mariana, Vazquez, Jose Alberto, Pinsonneault, Marc, Wylezalek, Dominika, Villanova, Sandro, Vogt, Nicole P., Zasowski, Gail, Wake, David, Fu, Hai, Wang, Yuting, Weaver, Benjamin Alan, Beutler, Florian, Diamond-Stanic, Aleksandar M., Fernández-Trincado, J. G., Weijmans, Anne-Marie, da Silva Ilha, Gabriele, Masseron, Thomas, Weinberg, David H., Zhang, Kai, Bizyaev, Dmitry, Zhao, Cheng, Zhao, Gong-Bo, Zheng, Zheng, Pisani, Alice, Zhou, Zhi-Min, Merrifield, Michael R., Barrera-Ballesteros, J. K., García Pérez, Ana E., Sánchez, Sebastián F., Zhu, Guangtun, Eracleous, Michael, Zinn, Joel C., Zou, Hu, Blanc, Guillermo A., Prada, Francisco, Blanton, Michael R., Blomqvist, Michael, Bolton, Adam S., Lane, Richard R., Donor, John, Boquien, Médéric, Borissova, Jura, Sanchez Almeida, Jorge, Bovy, Jo, Garcia-Dias, R., Ybarra, Jason E., McDermid, Richard M., Bradna Diaz, Christian Andres, Brandt, William Nielsen, Brinkmann, Jonathan, Lang, Dustin, Brownstein, Joel R., Downes, Juan José, Bundy, Kevin, Burgasser, Adam J., Burtin, Etienne, Prakash, Abhishek, Sánchez-Gallego, José R., Busca, Nicolás G., Cañas, Caleb I., Cano-Díaz, Mariana, McGreer, Ian D., Law, David R., García-Hernández, Domingo Aníbal, Cappellari, Michele, Whelan, David G., Carrera, Ricardo, Queiroz, Anna Bárbara de Andrade, Casey, Andrew R., Cervantes Sodi, Bernardo, Chen, Yanping, Beaton, Rachael, Cherinka, Brian, Chiappini, Cristina, Le Goff, Jean-Marc, Choi, Peter Doohyun, Chojnowski, Drew, Melendez, Matthew, Baumgarten, Falk, Finoguenov, Alexis, Chuang, Chia-Hsun, Garma Oehmichen, Luis Alberto, Chung, Haeun, Clerc, Nicolas, Cohen, Roger E., Santana Rojas, Felipe Antonio, Lee, Young-Bae, Comerford, Julia M., Comparat, Johan, de la Torre, Sylvain, Correa do Nascimento, Janaina, da Costa, Luiz, Drory, Niv, Cousinou, Marie-Claude, Meneses-Goytia, Sofia, Covey, Kevin, Crane, J.D., Armengaud, Eric, Bailey, Stephen, Cruz-Gonzalez, Irene, Kirkby, David, Santiago, Basílio Xavier, Cunha, Katia, du Mas des Bourboux, Hélion, Gelfand, Joseph, Duckworth, Christopher J., Dwelly, Tom, Dyer, Jamie, Ebelke, Garrett L., Davis Eigenbrot, Arthur, Schwope, Axel, Fleming, Scott W., Meszaros, Szabolcs, Wilcots, Eric, Eisenstein, Daniel J., Mahadevan, Suvrath, Elsworth, Yvonne P., Emsellem, Eric, Gil-Marín, Héctor, Gillespie, Bruce A., Goddard, Daniel, González Hernández, Jonay I., Raddick, M. Jordan, Li, Hongyu, Gonzalez-Perez, Violeta, Grabowski, Kathleen, Wild, Vivienne, Green, Paul J., Meza, Andres, Schimoia, Jaderson S., Grier, Catherine J., Ata, Metin, Gueguen, Alain, Raichoor, Anand, Guo, Hong, Li, Cheng, Guy, Julien, Hagen, Alex, Hall, Patrick, Williams, Rob A., Harding, Paul, Hasselquist, Sten, Hawley, Suzanne, Schlafly, Edward F., Barboza Rembold, Sandro, Minchev, Ivan, Hayes, Christian R., Damke, Guillermo J., Hearty, Fred, Aubourg, Éric, Hekker, Saskia, Hernández, Jesús, Gómez Maqueo Chew, Yilen, Hernandez Toledo, Hector, Hogg, David W., Richstein, Hannah, Holley-Bockelmann, Kelly, Holtzman, Jon A., Schlegel, David J., Masters, Karen L., Hou, Jiamin, Minniti, Dante, Hsieh, Bau-Ching, Hunt, Jason A. S., Hutchinson, Timothy A., Wilson, John, Riffel, Rogemar A., Avila-Reese, Vladimir, Hwang, Ho Seong, Jimenez Angel, Camilo Eduardo, Johnson, Jennifer A., Lian, Jianhui, Jones, Amy, Schneider, Donald P., Jönsson, Henrik, Jullo, Eric, Erfanianfar, Ghazaleh, Cirolini, Rafael Fernando, Khan, Fahim Sakil, Wood-Vasey, W. Michael, Kinemuchi, Karen, Liang, Yu, Mueller, Eva-Maria, Lima, Marcos, Lin, Lihwai, Long, Dan, Lucatello, Sara, Lundgren, Britt, Yèche, Christophe, Seo, Hee-Jong, Darling, Jeremy, Mackereth, J. Ted, Salvato, Mara, Balland, Christophe, MacLeod, Chelsea L., Müller-Sánchez, Francisco, Muna, Demitri, Muñoz, Ricardo R., Myers, Adam D., Riffel, Rogério, Nair, Preethi, Nandra, Kirpal, Davidson, James W., Jr., Ness, Melissa, Beers, Timothy C., Bird, Jonathan C., Newman, Jeffrey A., Escoffier, Stephanie, Nichol, Robert C., Bartosz, Curtis, Rix, Hans-Walter, Nidever, David L., Nitschelm, Christian, Noterdaeme, Pasquier, Dawson, Kyle, O'Connell, Julia, Oelkers, Ryan James, Oravetz, Audrey, Xiao, Ting, Serenelli, Aldo, Oravetz, Daniel, Kirkpatrick, Charles C., IV, Ortíz, Erik Aquino, Fan, Xiaohui, Osorio, Yeisson, Pace, Zach, Merloni, Andrea, Bastien, Fabienne, Padilla, Nelson, Palanque-Delabrouille, Nathalie, Palicio, Pedro Alonso, Yan, Renbin, Schiavon, Ricardo P., Pan, Hsi-An, Shen, Shiyin, Pan, Kaike, Parikh, Taniya, Pâris, Isabelle, de Icaza Lizaola, Miguel Angel C., Fernández Alvar, Emma, Park, Changbom, Peirani, Sebastien, Pellejero-Ibanez, Marcos, Robin, Annie C., Bates, Dominic, Yang, Meng, Penny, Samantha, Percival, Will J., Maia, Marcio Antonio Geimba, Pèrez-Fournon, Ismael, de la Macorra, Axel, Petitjean, Patrick, Rodríguez Torres, Sergio, Shen, Yue, Román-Zúñiga, Carlos, Bautista, Julian, Ross, Ashley J., Rossi, Graziano, Ruan, John, Zakamska, Nadia, Badenes, Carles, Ruggeri, Rossana, Westfall, Kyle B., Feuillet, Diane, Ruiz, Jose, Shetrone, Matthew, Shull, Michael, Silva Aguirre, Víctor, Simon, Joshua D., Skrutskie, Mike, Slosar, Anže, Kitaura, Francisco-Shu, Smethurst, Rebecca, Galbany, Lluís, Gaulme, Patrick, Belfiore, Francesco, Majewski, Steven R., Smith, Verne, Argudo-Fernández, Maria, Sobeck, Jennifer, Somers, Garrett, Souter, Barbara J., Knapp, Gillian R., Souto, Diogo, Spindler, Ashley, Stark, David V., De Lee, Nathan, Zamora, Olga, Stassun, Keivan, Steinmetz, Matthias, Manchado, Arturo, Stello, Dennis, Bender, Chad F., Schuster, William J., Font-Ribera, Andreu, Storchi-Bergmann, Thaisa, Streblyanska, Alina, Stringfellow, Guy S., de Sainte Agathe, Victoria, Suárez, Genaro, Zarrouk, Pauline, Sun, Jing, Szigeti, Laszlo, Taghizadeh-Popp, Manuchehr, Kneib, Jean-Paul, Maraston, Claudia, Talbot, Michael S., Tang, Baitian, Tao, Charling, Freischlad, Gordon, Deconto Machado, Alice, Bernardi, Mariangela, Tayar, Jamie, Sánchez, Ariel G., Tembe, Mita, Kollmeier, Juna A., Teske, Johanna, Alfred P. Sloan Foundation, Department of Energy (US), University of Utah, Abolfathi, Bela, Aguado, D. S., Aguilar, Gabriela, Allende Prieto, Carlos, Almeida, Andres, Ananna, Tonima Tasnim, Anders, Friedrich, Anderson, Scott F., Andrews, Brett H., Anguiano, Borja, Aragón-Salamanca, Alfonso, Thakar, Aniruddha R., Thomas, Daniel, Mariappan, Vivek, Tissera, Patricia, Tojeiro, Rita, Dell'Agli, Flavia, Tremonti, Christy, Troup, Nicholas W., Frinchaboy, Peter, Lacerna, Ivan, Pieri, Matthew M., Barger, Kathleen A., Urry, Meg, Bershady, Matthew A., Valenzuela, O., van den Bosch, Remco, Vargas-González, Jaime, Marques-Chaves, Rui, Delubac, Timothée, Vargas Magaña, Mariana, Vazquez, Jose Alberto, Pinsonneault, Marc, Wylezalek, Dominika, Villanova, Sandro, Vogt, Nicole P., Zasowski, Gail, Wake, David, Fu, Hai, Wang, Yuting, Weaver, Benjamin Alan, Beutler, Florian, Diamond-Stanic, Aleksandar M., Fernández-Trincado, J. G., Weijmans, Anne-Marie, da Silva Ilha, Gabriele, Masseron, Thomas, Weinberg, David H., Zhang, Kai, Bizyaev, Dmitry, Zhao, Cheng, Zhao, Gong-Bo, Zheng, Zheng, Pisani, Alice, Zhou, Zhi-Min, Merrifield, Michael R., Barrera-Ballesteros, J. K., García Pérez, Ana E., Sánchez, Sebastián F., Zhu, Guangtun, Eracleous, Michael, Zinn, Joel C., Zou, Hu, Blanc, Guillermo A., Prada, Francisco, Blanton, Michael R., Blomqvist, Michael, Bolton, Adam S., Lane, Richard R., Donor, John, Boquien, Médéric, Borissova, Jura, Sanchez Almeida, Jorge, Bovy, Jo, Garcia-Dias, R., Ybarra, Jason E., McDermid, Richard M., Bradna Diaz, Christian Andres, Brandt, William Nielsen, Brinkmann, Jonathan, Lang, Dustin, Brownstein, Joel R., Downes, Juan José, Bundy, Kevin, Burgasser, Adam J., Burtin, Etienne, Prakash, Abhishek, Sánchez-Gallego, José R., Busca, Nicolás G., Cañas, Caleb I., Cano-Díaz, Mariana, McGreer, Ian D., Law, David R., García-Hernández, Domingo Aníbal, Cappellari, Michele, Whelan, David G., Carrera, Ricardo, Queiroz, Anna Bárbara de Andrade, Casey, Andrew R., Cervantes Sodi, Bernardo, Chen, Yanping, Beaton, Rachael, Cherinka, Brian, Chiappini, Cristina, Le Goff, Jean-Marc, Choi, Peter Doohyun, Chojnowski, Drew, Melendez, Matthew, Baumgarten, Falk, Finoguenov, Alexis, Chuang, Chia-Hsun, Garma Oehmichen, Luis Alberto, Chung, Haeun, Clerc, Nicolas, Cohen, Roger E., Santana Rojas, Felipe Antonio, Lee, Young-Bae, Comerford, Julia M., Comparat, Johan, de la Torre, Sylvain, Correa do Nascimento, Janaina, da Costa, Luiz, Drory, Niv, Cousinou, Marie-Claude, Meneses-Goytia, Sofia, Covey, Kevin, Crane, J.D., Armengaud, Eric, Bailey, Stephen, Cruz-Gonzalez, Irene, Kirkby, David, Santiago, Basílio Xavier, Cunha, Katia, du Mas des Bourboux, Hélion, Gelfand, Joseph, Duckworth, Christopher J., Dwelly, Tom, Dyer, Jamie, Ebelke, Garrett L., Davis Eigenbrot, Arthur, Schwope, Axel, Fleming, Scott W., Meszaros, Szabolcs, Wilcots, Eric, Eisenstein, Daniel J., Mahadevan, Suvrath, Elsworth, Yvonne P., Emsellem, Eric, Gil-Marín, Héctor, Gillespie, Bruce A., Goddard, Daniel, González Hernández, Jonay I., Raddick, M. Jordan, Li, Hongyu, Gonzalez-Perez, Violeta, Grabowski, Kathleen, Wild, Vivienne, Green, Paul J., Meza, Andres, Schimoia, Jaderson S., Grier, Catherine J., Ata, Metin, Gueguen, Alain, Raichoor, Anand, Guo, Hong, Li, Cheng, Guy, Julien, Hagen, Alex, Hall, Patrick, Williams, Rob A., Harding, Paul, Hasselquist, Sten, Hawley, Suzanne, Schlafly, Edward F., Barboza Rembold, Sandro, Minchev, Ivan, Hayes, Christian R., Damke, Guillermo J., Hearty, Fred, Aubourg, Éric, Hekker, Saskia, Hernández, Jesús, Gómez Maqueo Chew, Yilen, Hernandez Toledo, Hector, Hogg, David W., Richstein, Hannah, Holley-Bockelmann, Kelly, Holtzman, Jon A., Schlegel, David J., Masters, Karen L., Hou, Jiamin, Minniti, Dante, Hsieh, Bau-Ching, Hunt, Jason A. S., Hutchinson, Timothy A., Wilson, John, Riffel, Rogemar A., Avila-Reese, Vladimir, Hwang, Ho Seong, Jimenez Angel, Camilo Eduardo, Johnson, Jennifer A., Lian, Jianhui, Jones, Amy, Schneider, Donald P., Jönsson, Henrik, Jullo, Eric, Erfanianfar, Ghazaleh, Cirolini, Rafael Fernando, Khan, Fahim Sakil, Wood-Vasey, W. Michael, Kinemuchi, Karen, Liang, Yu, Mueller, Eva-Maria, Lima, Marcos, Lin, Lihwai, Long, Dan, Lucatello, Sara, Lundgren, Britt, Yèche, Christophe, Seo, Hee-Jong, Darling, Jeremy, Mackereth, J. Ted, Salvato, Mara, Balland, Christophe, MacLeod, Chelsea L., Müller-Sánchez, Francisco, Muna, Demitri, Muñoz, Ricardo R., Myers, Adam D., Riffel, Rogério, Nair, Preethi, Nandra, Kirpal, Davidson, James W., Jr., Ness, Melissa, Beers, Timothy C., Bird, Jonathan C., Newman, Jeffrey A., Escoffier, Stephanie, Nichol, Robert C., Bartosz, Curtis, Rix, Hans-Walter, Nidever, David L., Nitschelm, Christian, Noterdaeme, Pasquier, Dawson, Kyle, O'Connell, Julia, Oelkers, Ryan James, Oravetz, Audrey, Xiao, Ting, Serenelli, Aldo, Oravetz, Daniel, Kirkpatrick, Charles C., IV, Ortíz, Erik Aquino, Fan, Xiaohui, Osorio, Yeisson, Pace, Zach, Merloni, Andrea, Bastien, Fabienne, Padilla, Nelson, Palanque-Delabrouille, Nathalie, Palicio, Pedro Alonso, Yan, Renbin, Schiavon, Ricardo P., Pan, Hsi-An, Shen, Shiyin, Pan, Kaike, Parikh, Taniya, Pâris, Isabelle, de Icaza Lizaola, Miguel Angel C., Fernández Alvar, Emma, Park, Changbom, Peirani, Sebastien, Pellejero-Ibanez, Marcos, Robin, Annie C., Bates, Dominic, Yang, Meng, Penny, Samantha, Percival, Will J., Maia, Marcio Antonio Geimba, Pèrez-Fournon, Ismael, de la Macorra, Axel, Petitjean, Patrick, Rodríguez Torres, Sergio, Shen, Yue, Román-Zúñiga, Carlos, Bautista, Julian, Ross, Ashley J., Rossi, Graziano, Ruan, John, Zakamska, Nadia, Badenes, Carles, Ruggeri, Rossana, Westfall, Kyle B., Feuillet, Diane, Ruiz, Jose, Shetrone, Matthew, Shull, Michael, Silva Aguirre, Víctor, Simon, Joshua D., Skrutskie, Mike, Slosar, Anže, Kitaura, Francisco-Shu, Smethurst, Rebecca, Galbany, Lluís, Gaulme, Patrick, Belfiore, Francesco, Majewski, Steven R., Smith, Verne, Argudo-Fernández, Maria, Sobeck, Jennifer, Somers, Garrett, Souter, Barbara J., Knapp, Gillian R., Souto, Diogo, Spindler, Ashley, Stark, David V., De Lee, Nathan, Zamora, Olga, Stassun, Keivan, Steinmetz, Matthias, Manchado, Arturo, Stello, Dennis, Bender, Chad F., Schuster, William J., Font-Ribera, Andreu, Storchi-Bergmann, Thaisa, Streblyanska, Alina, Stringfellow, Guy S., de Sainte Agathe, Victoria, Suárez, Genaro, Zarrouk, Pauline, Sun, Jing, Szigeti, Laszlo, Taghizadeh-Popp, Manuchehr, Kneib, Jean-Paul, Maraston, Claudia, Talbot, Michael S., Tang, Baitian, Tao, Charling, Freischlad, Gordon, Deconto Machado, Alice, Bernardi, Mariangela, Tayar, Jamie, Sánchez, Ariel G., Tembe, Mita, Kollmeier, Juna A., and Teske, Johanna

Abstract

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since 2014 July. This paper describes the second data release from this phase, and the 14th from SDSS overall (making this Data Release Fourteen or DR14). This release makes the data taken by SDSS-IV in its first two years of operation (2014-2016 July) public. Like all previous SDSS releases, DR14 is cumulative, including the most recent reductions and calibrations of all data taken by SDSS since the first phase began operations in 2000. New in DR14 is the first public release of data from the extended Baryon Oscillation Spectroscopic Survey; the first data from the second phase of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2), including stellar parameter estimates from an innovative data-driven machine-learning algorithm known as ¿The Cannon¿ and almost twice as many data cubes from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous release (N = 2812 in total). This paper describes the location and format of the publicly available data from the SDSS-IV surveys. We provide references to the important technical papers describing how these data have been taken (both targeting and observation details) and processed for scientific use. The SDSS web site (www.sdss.org) has been updated for this release and provides links to data downloads, as well as tutorials and examples of data use. SDSS-IV is planning to continue to collect astronomical data until 2020 and will be followed by SDSS-V. © 2018. The American Astronomical Society..

Published
2018

3. The Evolution of Rotation and Magnetic Activity in 94 Aqr Aa from Asteroseismology with TESS.

Author

Metcalfe, Travis S., van Saders, Jennifer L., Basu, Sarbani, Buzasi, Derek, Chaplin, William J., Egeland, Ricky, Garcia, Rafael A., Gaulme, Patrick, Huber, Daniel, Reinhold, Timo, Schunker, Hannah, Stassun, Keivan G., Appourchaux, Thierry, Ball, Warrick H., Bedding, Timothy R., Deheuvels, Sébastien, González-Cuesta, Lucía, Handberg, Rasmus, Jiménez, Antonio, and Kjeldsen, Hans

Subjects
ROTATIONAL motion, STELLAR mass, STELLAR evolution, STELLAR activity, ANGULAR momentum (Mechanics), RED giants, AGE of stars
Abstract

Most previous efforts to calibrate how rotation and magnetic activity depend on stellar age and mass have relied on observations of clusters, where isochrones from stellar evolution models are used to determine the properties of the ensemble. Asteroseismology employs similar models to measure the properties of an individual star by matching its normal modes of oscillation, yielding the stellar age and mass with high precision. We use 27 days of photometry from the Transiting Exoplanet Survey Satellite to characterize solar-like oscillations in the G8 subgiant of the 94 Aqr triple system. The resulting stellar properties, when combined with a reanalysis of 35 yr of activity measurements from the Mount Wilson HK project, allow us to probe the evolution of rotation and magnetic activity in the system. The asteroseismic age of the subgiant agrees with a stellar isochrone fit, but the rotation period is much shorter than expected from standard models of angular momentum evolution. We conclude that weakened magnetic braking may be needed to reproduce the stellar properties, and that evolved subgiants in the hydrogen shell-burning phase can reinvigorate large-scale dynamo action and briefly sustain magnetic activity cycles before ascending the red giant branch. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
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4. SDSS-IV MaNGA IFS galaxy survey—survey design, execution, and initial data quality

Author

Yan, Renbin, Bundy, Kevin, Law, David R., Bershady, Matthew A., Andrews, Brett, Cherinka, Brian, Diamond-Stanic, Aleksandar M., Drory, Niv, MacDonald, Nicholas, Sánchez-Gallego, José R., Thomas, Daniel, Wake, David A., Weijmans, Anne-Marie, Westfall, Kyle B., Zhang, Kai, Aragón-Salamanca, Alfonso, Belfiore, Francesco, Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael R., Brownstein, Joel, Cappellari, Michele, D’Souza, Richard, Emsellem, Eric, Fu, Hai, Gaulme, Patrick, Graham, Mark T., Goddard, Daniel, Gunn, James E., Harding, Paul, Jones, Amy, Kinemuchi, Karen, Li, Cheng, Li, Hongyu, Maiolino, Roberto, Mao, Shude, Maraston, Claudia, Masters, Karen, Merrifield, Michael R., Oravetz, Daniel, Pan, Kaike, Parejko, John K., Sanchez, Sebastian F., Schlegel, David, Simmons, Audrey, Thanjavur, Karun, Tinker, Jeremy, Tremonti, Christy, van den Bosch, Remco, Zheng, Zheng, Yan, Renbin, Bundy, Kevin, Law, David R., Bershady, Matthew A., Andrews, Brett, Cherinka, Brian, Diamond-Stanic, Aleksandar M., Drory, Niv, MacDonald, Nicholas, Sánchez-Gallego, José R., Thomas, Daniel, Wake, David A., Weijmans, Anne-Marie, Westfall, Kyle B., Zhang, Kai, Aragón-Salamanca, Alfonso, Belfiore, Francesco, Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael R., Brownstein, Joel, Cappellari, Michele, D’Souza, Richard, Emsellem, Eric, Fu, Hai, Gaulme, Patrick, Graham, Mark T., Goddard, Daniel, Gunn, James E., Harding, Paul, Jones, Amy, Kinemuchi, Karen, Li, Cheng, Li, Hongyu, Maiolino, Roberto, Mao, Shude, Maraston, Claudia, Masters, Karen, Merrifield, Michael R., Oravetz, Daniel, Pan, Kaike, Parejko, John K., Sanchez, Sebastian F., Schlegel, David, Simmons, Audrey, Thanjavur, Karun, Tinker, Jeremy, Tremonti, Christy, van den Bosch, Remco, and Zheng, Zheng

Abstract

The MaNGA Survey (Mapping Nearby Galaxies at Apache Point Observatory) is one of three core programs in the Sloan Digital Sky Survey IV. It is obtaining integral field spectroscopy for 10,000 nearby galaxies at a spectral resolution of R ∼ 2000 from 3622 to 10354 Å. The design of the survey is driven by a set of science requirements on the precision of estimates of the following properties: star formation rate surface density, gas metallicity, stellar population age, metallicity, and abundance ratio, and their gradients; stellar and gas kinematics; and enclosed gravitational mass as a function of radius. We describe how these science requirements set the depth of the observations and dictate sample selection. The majority of targeted galaxies are selected to ensure uniform spatial coverage in units of effective radius (Re) while maximizing spatial resolution. About two-thirds of the sample is covered out to 1.5Re (Primary sample), and one-third of the sample is covered to 2.5Re (Secondary sample). We describe the survey execution with details that would be useful in the design of similar future surveys. We also present statistics on the achieved data quality, specifically the point-spread function, sampling uniformity, spectral resolution, sky subtraction, and flux calibration. For our Primary sample, the median r-band signal-to-noise ratio is ∼70 per 1.4 Å pixel for spectra stacked between 1Re and 1.5Re. Measurements of various galaxy properties from the first-year data show that we are meeting or exceeding the defined requirements for the majority of our science goals.

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5. SDSS-IV MaNGA IFS galaxy survey—survey design, execution, and initial data quality

Author

Yan, Renbin, Bundy, Kevin, Law, David R., Bershady, Matthew A., Andrews, Brett, Cherinka, Brian, Diamond-Stanic, Aleksandar M., Drory, Niv, MacDonald, Nicholas, Sánchez-Gallego, José R., Thomas, Daniel, Wake, David A., Weijmans, Anne-Marie, Westfall, Kyle B., Zhang, Kai, Aragón-Salamanca, Alfonso, Belfiore, Francesco, Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael R., Brownstein, Joel, Cappellari, Michele, D’Souza, Richard, Emsellem, Eric, Fu, Hai, Gaulme, Patrick, Graham, Mark T., Goddard, Daniel, Gunn, James E., Harding, Paul, Jones, Amy, Kinemuchi, Karen, Li, Cheng, Li, Hongyu, Maiolino, Roberto, Mao, Shude, Maraston, Claudia, Masters, Karen, Merrifield, Michael R., Oravetz, Daniel, Pan, Kaike, Parejko, John K., Sanchez, Sebastian F., Schlegel, David, Simmons, Audrey, Thanjavur, Karun, Tinker, Jeremy, Tremonti, Christy, van den Bosch, Remco, Zheng, Zheng, Yan, Renbin, Bundy, Kevin, Law, David R., Bershady, Matthew A., Andrews, Brett, Cherinka, Brian, Diamond-Stanic, Aleksandar M., Drory, Niv, MacDonald, Nicholas, Sánchez-Gallego, José R., Thomas, Daniel, Wake, David A., Weijmans, Anne-Marie, Westfall, Kyle B., Zhang, Kai, Aragón-Salamanca, Alfonso, Belfiore, Francesco, Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael R., Brownstein, Joel, Cappellari, Michele, D’Souza, Richard, Emsellem, Eric, Fu, Hai, Gaulme, Patrick, Graham, Mark T., Goddard, Daniel, Gunn, James E., Harding, Paul, Jones, Amy, Kinemuchi, Karen, Li, Cheng, Li, Hongyu, Maiolino, Roberto, Mao, Shude, Maraston, Claudia, Masters, Karen, Merrifield, Michael R., Oravetz, Daniel, Pan, Kaike, Parejko, John K., Sanchez, Sebastian F., Schlegel, David, Simmons, Audrey, Thanjavur, Karun, Tinker, Jeremy, Tremonti, Christy, van den Bosch, Remco, and Zheng, Zheng

Abstract

The MaNGA Survey (Mapping Nearby Galaxies at Apache Point Observatory) is one of three core programs in the Sloan Digital Sky Survey IV. It is obtaining integral field spectroscopy for 10,000 nearby galaxies at a spectral resolution of R ∼ 2000 from 3622 to 10354 Å. The design of the survey is driven by a set of science requirements on the precision of estimates of the following properties: star formation rate surface density, gas metallicity, stellar population age, metallicity, and abundance ratio, and their gradients; stellar and gas kinematics; and enclosed gravitational mass as a function of radius. We describe how these science requirements set the depth of the observations and dictate sample selection. The majority of targeted galaxies are selected to ensure uniform spatial coverage in units of effective radius (Re) while maximizing spatial resolution. About two-thirds of the sample is covered out to 1.5Re (Primary sample), and one-third of the sample is covered to 2.5Re (Secondary sample). We describe the survey execution with details that would be useful in the design of similar future surveys. We also present statistics on the achieved data quality, specifically the point-spread function, sampling uniformity, spectral resolution, sky subtraction, and flux calibration. For our Primary sample, the median r-band signal-to-noise ratio is ∼70 per 1.4 Å pixel for spectra stacked between 1Re and 1.5Re. Measurements of various galaxy properties from the first-year data show that we are meeting or exceeding the defined requirements for the majority of our science goals.

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6. SDSS-IV MaNGA IFS galaxy survey—survey design, execution, and initial data quality

Author

Yan, Renbin, Bundy, Kevin, Law, David R., Bershady, Matthew A., Andrews, Brett, Cherinka, Brian, Diamond-Stanic, Aleksandar M., Drory, Niv, MacDonald, Nicholas, Sánchez-Gallego, José R., Thomas, Daniel, Wake, David A., Weijmans, Anne-Marie, Westfall, Kyle B., Zhang, Kai, Aragón-Salamanca, Alfonso, Belfiore, Francesco, Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael R., Brownstein, Joel, Cappellari, Michele, D’Souza, Richard, Emsellem, Eric, Fu, Hai, Gaulme, Patrick, Graham, Mark T., Goddard, Daniel, Gunn, James E., Harding, Paul, Jones, Amy, Kinemuchi, Karen, Li, Cheng, Li, Hongyu, Maiolino, Roberto, Mao, Shude, Maraston, Claudia, Masters, Karen, Merrifield, Michael R., Oravetz, Daniel, Pan, Kaike, Parejko, John K., Sanchez, Sebastian F., Schlegel, David, Simmons, Audrey, Thanjavur, Karun, Tinker, Jeremy, Tremonti, Christy, van den Bosch, Remco, Zheng, Zheng, Yan, Renbin, Bundy, Kevin, Law, David R., Bershady, Matthew A., Andrews, Brett, Cherinka, Brian, Diamond-Stanic, Aleksandar M., Drory, Niv, MacDonald, Nicholas, Sánchez-Gallego, José R., Thomas, Daniel, Wake, David A., Weijmans, Anne-Marie, Westfall, Kyle B., Zhang, Kai, Aragón-Salamanca, Alfonso, Belfiore, Francesco, Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael R., Brownstein, Joel, Cappellari, Michele, D’Souza, Richard, Emsellem, Eric, Fu, Hai, Gaulme, Patrick, Graham, Mark T., Goddard, Daniel, Gunn, James E., Harding, Paul, Jones, Amy, Kinemuchi, Karen, Li, Cheng, Li, Hongyu, Maiolino, Roberto, Mao, Shude, Maraston, Claudia, Masters, Karen, Merrifield, Michael R., Oravetz, Daniel, Pan, Kaike, Parejko, John K., Sanchez, Sebastian F., Schlegel, David, Simmons, Audrey, Thanjavur, Karun, Tinker, Jeremy, Tremonti, Christy, van den Bosch, Remco, and Zheng, Zheng

Abstract

The MaNGA Survey (Mapping Nearby Galaxies at Apache Point Observatory) is one of three core programs in the Sloan Digital Sky Survey IV. It is obtaining integral field spectroscopy for 10,000 nearby galaxies at a spectral resolution of R ∼ 2000 from 3622 to 10354 Å. The design of the survey is driven by a set of science requirements on the precision of estimates of the following properties: star formation rate surface density, gas metallicity, stellar population age, metallicity, and abundance ratio, and their gradients; stellar and gas kinematics; and enclosed gravitational mass as a function of radius. We describe how these science requirements set the depth of the observations and dictate sample selection. The majority of targeted galaxies are selected to ensure uniform spatial coverage in units of effective radius (Re) while maximizing spatial resolution. About two-thirds of the sample is covered out to 1.5Re (Primary sample), and one-third of the sample is covered to 2.5Re (Secondary sample). We describe the survey execution with details that would be useful in the design of similar future surveys. We also present statistics on the achieved data quality, specifically the point-spread function, sampling uniformity, spectral resolution, sky subtraction, and flux calibration. For our Primary sample, the median r-band signal-to-noise ratio is ∼70 per 1.4 Å pixel for spectra stacked between 1Re and 1.5Re. Measurements of various galaxy properties from the first-year data show that we are meeting or exceeding the defined requirements for the majority of our science goals.

Full Text
View/download PDF

7. SDSS-IV MaNGA IFS galaxy survey—survey design, execution, and initial data quality

Author

Yan, Renbin, Bundy, Kevin, Law, David R., Bershady, Matthew A., Andrews, Brett, Cherinka, Brian, Diamond-Stanic, Aleksandar M., Drory, Niv, MacDonald, Nicholas, Sánchez-Gallego, José R., Thomas, Daniel, Wake, David A., Weijmans, Anne-Marie, Westfall, Kyle B., Zhang, Kai, Aragón-Salamanca, Alfonso, Belfiore, Francesco, Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael R., Brownstein, Joel, Cappellari, Michele, D’Souza, Richard, Emsellem, Eric, Fu, Hai, Gaulme, Patrick, Graham, Mark T., Goddard, Daniel, Gunn, James E., Harding, Paul, Jones, Amy, Kinemuchi, Karen, Li, Cheng, Li, Hongyu, Maiolino, Roberto, Mao, Shude, Maraston, Claudia, Masters, Karen, Merrifield, Michael R., Oravetz, Daniel, Pan, Kaike, Parejko, John K., Sanchez, Sebastian F., Schlegel, David, Simmons, Audrey, Thanjavur, Karun, Tinker, Jeremy, Tremonti, Christy, van den Bosch, Remco, Zheng, Zheng, Yan, Renbin, Bundy, Kevin, Law, David R., Bershady, Matthew A., Andrews, Brett, Cherinka, Brian, Diamond-Stanic, Aleksandar M., Drory, Niv, MacDonald, Nicholas, Sánchez-Gallego, José R., Thomas, Daniel, Wake, David A., Weijmans, Anne-Marie, Westfall, Kyle B., Zhang, Kai, Aragón-Salamanca, Alfonso, Belfiore, Francesco, Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael R., Brownstein, Joel, Cappellari, Michele, D’Souza, Richard, Emsellem, Eric, Fu, Hai, Gaulme, Patrick, Graham, Mark T., Goddard, Daniel, Gunn, James E., Harding, Paul, Jones, Amy, Kinemuchi, Karen, Li, Cheng, Li, Hongyu, Maiolino, Roberto, Mao, Shude, Maraston, Claudia, Masters, Karen, Merrifield, Michael R., Oravetz, Daniel, Pan, Kaike, Parejko, John K., Sanchez, Sebastian F., Schlegel, David, Simmons, Audrey, Thanjavur, Karun, Tinker, Jeremy, Tremonti, Christy, van den Bosch, Remco, and Zheng, Zheng

Abstract

The MaNGA Survey (Mapping Nearby Galaxies at Apache Point Observatory) is one of three core programs in the Sloan Digital Sky Survey IV. It is obtaining integral field spectroscopy for 10,000 nearby galaxies at a spectral resolution of R ∼ 2000 from 3622 to 10354 Å. The design of the survey is driven by a set of science requirements on the precision of estimates of the following properties: star formation rate surface density, gas metallicity, stellar population age, metallicity, and abundance ratio, and their gradients; stellar and gas kinematics; and enclosed gravitational mass as a function of radius. We describe how these science requirements set the depth of the observations and dictate sample selection. The majority of targeted galaxies are selected to ensure uniform spatial coverage in units of effective radius (Re) while maximizing spatial resolution. About two-thirds of the sample is covered out to 1.5Re (Primary sample), and one-third of the sample is covered to 2.5Re (Secondary sample). We describe the survey execution with details that would be useful in the design of similar future surveys. We also present statistics on the achieved data quality, specifically the point-spread function, sampling uniformity, spectral resolution, sky subtraction, and flux calibration. For our Primary sample, the median r-band signal-to-noise ratio is ∼70 per 1.4 Å pixel for spectra stacked between 1Re and 1.5Re. Measurements of various galaxy properties from the first-year data show that we are meeting or exceeding the defined requirements for the majority of our science goals.

Full Text
View/download PDF

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