Zobrazeno 1 - 10
of 3 903
pro vyhledávání: '"Johnson, Jennifer A."'
The Milky Way Radial Metallicity Gradient as an Equilibrium Phenomenon: Why Old Stars are Metal-Rich
Autor:
Johnson, James W., Weinberg, David H., Blanc, Guillermo A., Bonaca, Ana, Rudie, Gwen C., Yuxi, Lu, Chu, Bronwyn Reichardt, Griffith, Emily J., Sit, Tawny, Johnson, Jennifer A., Dubay, Liam O., Weller, Miqaela K., Boyea, Daniel A., Bird, Jonathan C.
Metallicities of both gas and stars decline toward large radii in spiral galaxies, a trend known as the radial metallicity gradient. We quantify the evolution of the metallicity gradient in the Milky Way as traced by APOGEE red giants with age estima
Externí odkaz:
http://arxiv.org/abs/2410.13256
Autor:
Lu, Yuxi, Colman, Isabel L., Sayeed, Maryum, Amard, Louis, Buder, Sven, Manea, Catherine, Hattori, Soichiro, Pinsonneault, Marc H., Price-Whelan, Adrian M., Bedell, Megan, Nidever, David, Johnson, Jennifer A., Ness, Melissa, Angus, Ruth, Claytor, Zachary R., Horta, Danny, Behmard, Aida
The existence of high-$\alpha$ stars with inferred ages < 6 Gyr has been confirmed recently with large spectroscopic and photometric surveys. However, stellar mergers or binary interactions can induce properties associated with young ages, such as hi
Externí odkaz:
http://arxiv.org/abs/2410.02962
Autor:
Pinsonneault, Marc H., Zinn, Joel C., Tayar, Jamie, Serenelli, Aldo, Garcia, Rafael A., Mathur, Savita, Vrard, Mathieu, Elsworth, Yvonne P., Mosser, Benoit, Stello, Dennis, Bell, Keaton J., Bugnet, Lisa, Corsaro, Enrico, Gaulme, Patrick, Hekker, Saskia, Hon, Marc, Huber, Daniel, Kallinger, Thomas, Cao, Kaili, Johnson, Jennifer A., Liagre, Bastien, Patton, Rachel A., Santos, Angela R. G., Basu, Sarbani, Beck, Paul G., Beers, Timothy C., Chaplin, William J., Cunha, Katia, Frinchaboy, Peter M., Girardi, Leo, Godoy-Rivera, Diego, Holtzman, Jon A., Jonsson, Henrik, Meszaros, Szabolcs, Reyes, Claudia, Rix, Hans-Walter, Shetrone, Matthew, Smith, Verne V., Spoo, Taylor, Stassun, Keivan G., Wang, Ji
In the third APOKASC catalog, we present data for the complete sample of 15,808 evolved stars with APOGEE spectroscopic parameters and Kepler asteroseismology. We used ten independent asteroseismic analysis techniques and anchor our system on fundame
Externí odkaz:
http://arxiv.org/abs/2410.00102
Type Ia supernovae (SNe Ia) produce most of the Fe-peak elements in the Universe and therefore are a crucial ingredient in galactic chemical evolution models. SNe Ia do not explode immediately after star formation, and the delay-time distribution (DT
Externí odkaz:
http://arxiv.org/abs/2404.08059
Autor:
Warfield, Jack T., Zinn, Joel C., Schonhut-Stasik, Jessica, Johnson, James W., Pinsonneault, Marc H., Johnson, Jennifer A., Stello, Dennis, Beaton, Rachael L., Elsworth, Yvonne, García, Rafael A., Mathur, Savita, Mosser, Benoît, Serenelli, Aldo, Tayar, Jamie
We present stellar age determinations for 4661 red giant branch stars in the APO-K2 catalog, derived using mass estimates from K2 asteroseismology from the K2 Galactic Archaeology Program and elemental abundances from the Apache Point Galactic Evolut
Externí odkaz:
http://arxiv.org/abs/2403.16250
Autor:
Roberts, John D., Pinsonneault, Marc H., Johnson, Jennifer A., Zinn, Joel C., Weinberg, David H., Vrard, Mathieu, Tayar, Jamie, Stello, Dennis, Mosser, Benoît, Johnson, James W., Cao, Kaili, Stassun, Keivan G., Stringfellow, Guy S., Serenelli, Aldo, Mathur, Savita, Hekker, Saskia, García, Rafael A., Elsworth, Yvonne P., Corsaro, Enrico
The surface [C/N] ratios of evolved giants are strongly affected by the first dredge-up (FDU) of nuclear-processed material from stellar cores. C and N also have distinct nucleosynthetic origins and serve as diagnostics of mixing and mass loss. We us
Externí odkaz:
http://arxiv.org/abs/2403.03249
Autor:
Ji, Alexander P., Curtis, Sanjana, Storm, Nicholas, Chandra, Vedant, Schlaufman, Kevin C., Stassun, Keivan G., Heger, Alexander, Pignatari, Marco, Price-Whelan, Adrian M., Bergemann, Maria, Stringfellow, Guy S., Frohlich, Carla, Reggiani, Henrique, Holmbeck, Erika M., Tayar, Jamie, Shah, Shivani P., Griffith, Emily J., Laporte, Chervin F. P., Casey, Andrew R., Hawkins, Keith, Horta, Danny, Cerny, William, Thibodeaux, Pierre, Usman, Sam A., Amarante, Joao A. S., Beaton, Rachael L., Cargile, Phillip A., Chiappini, Cristina, Conroy, Charlie, Johnson, Jennifer A., Kollmeier, Juna A., Li, Haining, Loebman, Sarah, Meynet, Georges, Bizyaev, Dmitry, Brownstein, Joel R., Gupta, Pramod, Morrison, Sean, Pan, Kaike, Ramirez, Solange V., Rix, Hans-Walter, Sanchez-Gallego, Jose
Stars formed with initial mass over 50 Msun are very rare today, but they are thought to be more common in the early universe. The fates of those early, metal-poor, massive stars are highly uncertain. Most are expected to directly collapse to black h
Externí odkaz:
http://arxiv.org/abs/2401.02484
Autor:
Albareti, Franco D., Prieto, Carlos Allende, Almeida, Andres, Anders, Friedrich, Anderson, Scott, Andrews, Brett H., Aragón-Salamanca, Alfonso, Argudo-Fernández, Maria, Armengaud, Eric, Aubourg, Eric, Avila-Reese, Vladimir, Badenes, Carles, Bailey, Stephen, Barbuy, Beatriz, Barger, Kat, Barrera-Ballesteros, Jorge, Bartosz, Curtis, Basu, Sarbani, Bates, Dominic, Battaglia, Giuseppina, Baumgarten, Falk, Baur, Julien, Bautista, Julian, Beers, Timothy C., Belfiore, Francesco, Bershady, Matthew, de Lis, Sara Bertran, Bird, Jonathan C., Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael, Blomqvist, Michael, Bolton, Adam S., Borissova, J., Bovy, Jo, Brandt, William Nielsen, Brinkmann, Jonathan, Brownstein, Joel R., Bundy, Kevin, Burtin, Etienne, Busca, Nicolás G., Chavez, Hugo Orlando Camacho, Díaz, M. Cano, Cappellari, Michele, Carrera, Ricardo, Chen, Yanping, Cherinka, Brian, Cheung, Edmond, Chiappini, Cristina, Chojnowski, Drew, Chuang, Chia-Hsun, Chung, Haeun, Cirolini, Rafael Fernando, Clerc, Nicolas, Cohen, Roger E., Comerford, Julia M., Comparat, Johan, Correa do Nascimento, Janaina, Cousinou, Marie-Claude, Covey, Kevin, Crane, Jeffrey D., Croft, Rupert, Cunha, Katia, Darling, Jeremy, Davidson, James W., Dawson, Kyle, Da Costa, Luiz, Da Silva Ilha, Gabriele, Machado, Alice Deconto, Delubac, Timothée, De Lee, Nathan, De la Macorra, Axel, De la Torre, Sylvain, Diamond-Stanic, Aleksandar M., Donor, John, Downes, Juan Jose, Drory, Niv, Du, Cheng, Du Mas des Bourboux, Hélion, Dwelly, Tom, Ebelke, Garrett, Eigenbrot, Arthur, Eisenstein, Daniel J., Elsworth, Yvonne P., Emsellem, Eric, Eracleous, Michael, Escoffier, Stephanie, Evans, Michael L., Falcón-Barroso, Jesús, Fan, Xiaohui, Favole, Ginevra, Fernandez-Alvar, Emma, Fernandez-Trincado, J. G., Feuillet, Diane, Fleming, Scott W., Font-Ribera, Andreu, Freischlad, Gordon, Frinchaboy, Peter, Fu, Hai, Gao, Yang, Garcia, Rafael A., Garcia-Dias, R., Garcia-Hernández, D. A., Pérez, Ana E. Garcia, Gaulme, Patrick, Ge, Junqiang, Geisler, Douglas, Gillespie, Bruce, Marin, Hector Gil, Girardi, Léo, Goddard, Daniel, Chew, Yilen Gomez Maqueo, Gonzalez-Perez, Violeta, Grabowski, Kathleen, Green, Paul, Grier, Catherine J., Grier, Thomas, Guo, Hong, Guy, Julien, Hagen, Alex, Hall, Matt, Harding, Paul, Harley, R. E., Hasselquist, Sten, Hawley, Suzanne, Hayes, Christian R., Hearty, Fred, Hekker, Saskia, Toledo, Hector Hernandez, Ho, Shirley, Hogg, David W., Holley-Bockelmann, Kelly, Holtzman, Jon A., Holzer, Parker H., Hu, Jian, Huber, Daniel, Hutchinson, Timothy Alan, Hwang, Ho Seong, Ibarra-Medel, Héctor J., Ivans, Inese I., Ivory, KeShawn, Jaehnig, Kurt, Jensen, Trey W., Johnson, Jennifer A., Jones, Amy, Jullo, Eric, Kallinger, T., Kinemuchi, Karen, Kirkby, David, Klaene, Mark, Kneib, Jean-Paul, Kollmeier, Juna A., Lacerna, Ivan, Lane, Richard R., Lang, Dustin, Laurent, Pierre, Law, David R., Leauthaud, Alexie, Le Goff, Jean-Marc, Li, Chen, Li, Cheng, Li, Niu, Li, Ran, Liang, Fu-Heng, Liang, Yu, Lima, Marcos, Lin, Lihwai, Lin, Lin, Lin, Yen-Ting, Liu, Chao, Long, Dan, Lucatello, Sara, MacDonald, Nicholas, MacLeod, Chelsea L., Mackereth, J. Ted, Mahadevan, Suvrath, Maia, Marcio Antonio Geimba, Maiolino, Roberto, Majewski, Steven R., Malanushenko, Olena, Malanushenko, Viktor, Mallmann, Nícolas Dullius, Manchado, Arturo, Maraston, Claudia, Marques-Chaves, Rui, Valpuesta, Inma Martinez, Masters, Karen L., Mathur, Savita, McGreer, Ian D., Merloni, Andrea, Merrifield, Michael R., Meszáros, Szabolcs, Meza, Andres, Miglio, Andrea, Minchev, Ivan, Molaverdikhani, Karan, Montero-Dorta, Antonio D., Mosser, Benoit, Muna, Demitri, Myers, Adam, Nair, Preethi, Nandra, Kirpal, Ness, Melissa, Newman, Jeffrey A., Nichol, Robert C., Nidever, David L., Nitschelm, Christian, O’Connell, Julia, Oravetz, Audrey, Oravetz, Daniel J., Pace, Zachary, Padilla, Nelson, Palanque-Delabrouille, Nathalie, Pan, Kaike, Parejko, John, Paris, Isabelle, Park, Changbom, Peacock, John A., Peirani, Sebastien, Pellejero-Ibanez, Marcos, Penny, Samantha, Percival, Will J., Percival, Jeffrey W., Perez-Fournon, Ismael, Petitjean, Patrick, Pieri, Matthew, Pinsonneault, Marc H., Pisani, Alice, Prada, Francisco, Prakash, Abhishek, Price-Jones, Natalie, Raddick, M. Jordan, Rahman, Mubdi, Raichoor, Anand, Rembold, Sandro Barboza, Reyna, A. M., Rich, James, Richstein, Hannah, Ridl, Jethro, Riffel, Rogemar A., Riffel, Rogério, Rix, Hans-Walter, Robin, Annie C., Rockosi, Constance M., Rodríguez-Torres, Sergio, Rodrigues, Thaíse S., Roe, Natalie, Lopes, A. Roman, Román-Zúñiga, Carlos, Ross, Ashley J., Rossi, Graziano, Ruan, John, Ruggeri, Rossana, Runnoe, Jessie C., Salazar-Albornoz, Salvador, Salvato, Mara, Sanchez, Sebastian F., Sanchez, Ariel G., Sanchez-Gallego, José R., Santiago, Basílio Xavier, Schiavon, Ricardo, Schimoia, Jaderson S., Schlafly, Eddie, Schlegel, David J., Schneider, Donald P., Schönrich, Ralph, Schultheis, Mathias, Schwope, Axel, Seo, Hee-Jong, Serenelli, Aldo, Sesar, Branimir, Shao, Zhengyi, Shetrone, Matthew, Shull, Michael, Aguirre, Victor Silva, Skrutskie, M. F., Slosar, Anže, Smith, Michael, Smith, Verne V., Sobeck, Jennifer, Somers, Garrett, Souto, Diogo, Stark, David V., Stassun, Keivan G., Steinmetz, Matthias, Stello, Dennis, Bergmann, Thaisa Storchi, Strauss, Michael A., Streblyanska, Alina, Stringfellow, Guy S., Suarez, Genaro, Sun, Jing, Taghizadeh-Popp, Manuchehr, Tang, Baitian, Tao, Charling, Tayar, Jamie, Tembe, Mita, Thomas, Daniel, Tinker, Jeremy, Tojeiro, Rita, Tremonti, Christy, Troup, Nicholas, Trump, Jonathan R., Unda-Sanzana, Eduardo, Valenzuela, O., Van den Bosch, Remco, Vargas-Magaña, Mariana, Vazquez, Jose Alberto, Villanova, Sandro, Vivek, M., Vogt, Nicole, Wake, David, Walterbos, Rene, Wang, Yuting, Wang, Enci, Weaver, Benjamin Alan, Weijmans, Anne-Marie, Weinberg, David H., Westfall, Kyle B., Whelan, David G., Wilcots, Eric, Wild, Vivienne, Williams, Rob A., Wilson, John, Wood-Vasey, W. M., Wylezalek, Dominika, Xiao, Ting, Yan, Renbin, Yang, Meng, Ybarra, Jason E., Yeche, Christophe, Yuan, Fang-Ting, Zakamska, Nadia, Zamora, Olga, Zasowski, Gail, Zhang, Kai, Zhao, Cheng, Zhao, Gong-Bo, Zheng, Zheng, Zhou, Zhi-Min, Zhu, Guangtun, Zinn, Joel C., Zou, Hu
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in 2014 July. It pursues three core programs: the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2), Mapping Nearby Galaxies at APO (MaNGA), and the
Externí odkaz:
http://hdl.handle.net/10150/626420
http://arizona.openrepository.com/arizona/handle/10150/626420
http://arizona.openrepository.com/arizona/handle/10150/626420
Autor:
Imig, Julie, Price, Cathryn, Holtzman, Jon A., Stone-Martinez, Alexander, Majewski, Steven R., Weinberg, David H., Johnson, Jennifer A., Prieto, Carlos Allende, Beaton, Rachael L., Beers, Timothy C., Bizyaev, Dmitry, Blanton, Michael R., Brownstein, Joel R., Cunha, Katia, Fernández-Trincado, José G., Feuillet, Diane K., Hasselquist, Sten, Hayes, Christian R., Jönsson, Henrik, Lane, Richard R., Lian, Jianhui, Mészáros, Szabolcs, Nidever, David L., Robin, Annie C., Shetrone, Matthew, Smith, Verne, Wilson, John C.
Publikováno v:
ApJ 954 124 (2023)
We present new maps of the Milky Way disk showing the distribution of metallicity ([Fe/H]), $\alpha$-element abundances ([Mg/Fe]), and stellar age, using a sample of 66,496 red giant stars from the final data release (DR17) of the Apache Point Observ
Externí odkaz:
http://arxiv.org/abs/2307.13887
Autor:
Majewski, Steven R., Schiavon, Ricardo P., Frinchaboy, Peter M., Prieto, Carlos Allende, Barkhouser, Robert, Bizyaev, Dmitry, Blank, Basil, Brunner, Sophia, Burton, Adam, Carrera, Ricardo, Chojnowski, S. Drew, Cunha, Kátia, Epstein, Courtney, Fitzgerald, Greg, Pérez, Ana E. García, Hearty, Fred R., Henderson, Chuck, Holtzman, Jon A., Johnson, Jennifer A., Lam, Charles R., Lawler, James E., Maseman, Paul, Mészáros, Szabolcs, Nelson, Matthew, Nguyen, Duy Coung, Nidever, David L., Pinsonneault, Marc, Shetrone, Matthew, Smee, Stephen, Smith, Verne V., Stolberg, Todd, Skrutskie, Michael F., Walker, Eric, Wilson, John C., Zasowski, Gail, Anders, Friedrich, Basu, Sarbani, Beland, Stephane, Blanton, Michael R., Bovy, Jo, Brownstein, Joel R., Carlberg, Joleen, Chaplin, William, Chiappini, Cristina, Eisenstein, Daniel J., Elsworth, Yvonne, Feuillet, Diane, Fleming, Scott W., Galbraith-Frew, Jessica, García, Rafael A., García-Hernández, D. Aníbal, Gillespie, Bruce A., Girardi, Léo, Gunn, James E., Hasselquist, Sten, Hayden, Michael R., Hekker, Saskia, Ivans, Inese, Kinemuchi, Karen, Klaene, Mark, Mahadevan, Suvrath, Mathur, Savita, Mosser, Benoît, Muna, Demitri, Munn, Jeffrey A., Nichol, Robert C., O’Connell, Robert W., Parejko, John K., Robin, A. C., Rocha-Pinto, Helio, Schultheis, Matthias, Serenelli, Aldo M., Shane, Neville, Aguirre, Victor Silva, Sobeck, Jennifer S., Thompson, Benjamin, Troup, Nicholas W., Weinberg, David H., Zamora, Olga
The Apache Point Observatory Galactic Evolution Experiment (APOGEE), one of the programs in the Sloan Digital Sky Survey III (SDSS-III), has now completed its systematic, homogeneous spectroscopic survey sampling all major populations of the Milky Wa
Externí odkaz:
http://hdl.handle.net/10150/625493
http://arizona.openrepository.com/arizona/handle/10150/625493
http://arizona.openrepository.com/arizona/handle/10150/625493