Driving factors behind multiple populations

Autor: Huang, Ruoyun, Tang, Baitian, Li, Chengyuan, Geisler, Doug, Mateo, Mario, Song, Ying-Yi, Baumgardt, Holger, Carballo-Bello, Julio A., Wang, Yue, Nie, Jundan, Dias, Bruno, Fernández-Trincado, José G.

Star clusters were historically considered simple stellar populations, with all stars sharing the same age and initial chemical composition. However, the presence of chemical anomalies in globular clusters (GCs), called multiple stellar populations (

Externí odkaz: http://arxiv.org/abs/2401.17584

CAPOS: The bulge Cluster APOgee Survey IV. Elemental Abundances of the bulge globular cluster NGC 6558

Autor: González-Díaz, Danilo, Fernández-Trincado, José G., Villanova, Sandro, Geisler, Doug, Barbuy, Beatriz, Minniti, Dante, Beers, Timothy C., Bidin, Christian Moni, Mauro, Francesco, Muñoz, Cesar, Tang, Baitian, Soto, Mario, Monachesi, Antonela, Lane, Richard R., Frelijj, Heinz

This study presents the results concerning six red giant stars members of the globular cluster NGC 6558. Our analysis utilized high-resolution near-infrared spectra obtained through the CAPOS initiative (the APOgee Survey of Clusters in the Galactic

Externí odkaz: http://arxiv.org/abs/2310.13054

Disentangling the Galactic Halo with APOGEE. I. Chemical and Kinematical Investigation of Distinct Metal-poor Populations

Autor: Hayes, Christian R., Majewski, Steven R., Shetrone, Matthew, Fernández-Alvar, Emma, Prieto, Carlos Allende, Schuster, William J., Carigi, Leticia, Cunha, Katia, Smith, Verne V., Sobeck, Jennifer, Almeida, Andres, Beers, Timothy C., Carrera, Ricardo, Fernández-Trincado, J. G., García-Hernández, D. A., Geisler, Doug, Lane, Richard R., Lucatello, Sara, Matthews, Allison M., Minniti, Dante, Nitschelm, Christian, Tang, Baitian, Tissera, Patricia B., Zamora, Olga

We find two chemically distinct populations separated relatively cleanly in the [Fe/H]-[Mg/Fe] plane, but also distinguished in other chemical planes, among metal-poor stars (primarily with metallicities [Fe/H] < -0.9) observed by the Apache Point Ob

Externí odkaz: http://hdl.handle.net/10150/626539
http://arizona.openrepository.com/arizona/handle/10150/626539

Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe

Autor: Blanton, Michael R., Bershady, Matthew A., Abolfathi, Bela, Albareti, Franco D., Prieto, Carlos Allende, Almeida, Andres, Alonso-García, Javier, Anders, Friedrich, Anderson, Scott F., Andrews, Brett, Aquino-Ortíz, Erik, Aragón-Salamanca, Alfonso, Argudo-Fernández, Maria, Armengaud, Eric, Aubourg, Eric, Avila-Reese, Vladimir, Badenes, Carles, Bailey, Stephen, Barger, Kathleen A., Barrera-Ballesteros, Jorge, Bartosz, Curtis, Bates, Dominic, Baumgarten, Falk, Bautista, Julian, Beaton, Rachael, Beers, Timothy C., Belfiore, Francesco, Bender, Chad F., Berlind, Andreas A., Bernardi, Mariangela, Beutler, Florian, Bird, Jonathan C., Bizyaev, Dmitry, Blanc, Guillermo A., Blomqvist, Michael, Bolton, Adam S., Boquien, Médéric, Borissova, Jura, Bosch, Remco van den, Bovy, Jo, Brandt, William N., Brinkmann, Jonathan, Brownstein, Joel R., Bundy, Kevin, Burgasser, Adam J., Burtin, Etienne, Busca, Nicolás G., Cappellari, Michele, Carigi, Maria Leticia Delgado, Carlberg, Joleen K., Rosell, Aurelio Carnero, Carrera, Ricardo, Chanover, Nancy J., Cherinka, Brian, Cheung, Edmond, Chew, Yilen Gómez Maqueo, Chiappini, Cristina, Choi, Peter Doohyun, Chojnowski, Drew, Chuang, Chia-Hsun, Chung, Haeun, Cirolini, Rafael Fernando, Clerc, Nicolas, Cohen, Roger E., Comparat, Johan, Costa, Luiz da, Cousinou, Marie-Claude, Covey, Kevin, Crane, Jeffrey D., Croft, Rupert A. C., Cruz-Gonzalez, Irene, Cuadra, Daniel Garrido, Cunha, Katia, Damke, Guillermo J., Darling, Jeremy, Davies, Roger, Dawson, Kyle, Macorra, Axel de la, Dell’Agli, Flavia, Lee, Nathan De, Delubac, Timothée, Mille, Francesco Di, Diamond-Stanic, Aleks, Cano-Díaz, Mariana, Donor, John, Downes, Juan José, Drory, Niv, Bourboux, Hélion du Mas des, Duckworth, Christopher J., Dwelly, Tom, Dyer, Jamie, Ebelke, Garrett, Eigenbrot, Arthur D., Eisenstein, Daniel J., Emsellem, Eric, Eracleous, Mike, Escoffier, Stephanie, Evans, Michael L., Fan, Xiaohui, Fernández-Alvar, Emma, Fernandez-Trincado, J. G., Feuillet, Diane K., Finoguenov, Alexis, Fleming, Scott W., Font-Ribera, Andreu, Fredrickson, Alexander, Freischlad, Gordon, Frinchaboy, Peter M., Fuentes, Carla E., Galbany, Lluís, Garcia-Dias, R., García-Hernández, D. A., Gaulme, Patrick, Geisler, Doug, Gelfand, Joseph D., Gil-Marín, Héctor, Gillespie, Bruce A., Goddard, Daniel, Gonzalez-Perez, Violeta, Grabowski, Kathleen, Green, Paul J., Grier, Catherine J., Gunn, James E., Guo, Hong, Guy, Julien, Hagen, Alex, Hahn, ChangHoon, Hall, Matthew, Harding, Paul, Hasselquist, Sten, Hawley, Suzanne L., Hearty, Fred, Hernández, Jonay I. Gonzalez, Ho, Shirley, Hogg, David W., Holley-Bockelmann, Kelly, Holtzman, Jon A., Holzer, Parker H., Huehnerhoff, Joseph, Hutchinson, Timothy A., Hwang, Ho Seong, Ibarra-Medel, Héctor J., Ilha, Gabriele da Silva, Ivans, Inese I., Ivory, KeShawn, Jackson, Kelly, Jensen, Trey W., Johnson, Jennifer A., Jones, Amy, Jönsson, Henrik, Jullo, Eric, Kamble, Vikrant, Kinemuchi, Karen, Kirkby, David, Kitaura, Francisco-Shu, Klaene, Mark, Knapp, Gillian R., Kneib, Jean-Paul, Kollmeier, Juna A., Lacerna, Ivan, Lane, Richard R., Lang, Dustin, Law, David R., Lazarz, Daniel, Lee, Youngbae, Goff, Jean-Marc Le, Liang, Fu-Heng, Li, Cheng, Li, Hongyu, Lian, Jianhui, Lima, Marcos, Lin, Lihwai, Lin, Yen-Ting, Lis, Sara Bertran de, Liu, Chao, Lizaola, Miguel Angel C. de Icaza, Long, Dan, Lucatello, Sara, Lundgren, Britt, MacDonald, Nicholas K., Machado, Alice Deconto, MacLeod, Chelsea L., Mahadevan, Suvrath, Maia, Marcio Antonio Geimba, Maiolino, Roberto, Majewski, Steven R., Malanushenko, Elena, Malanushenko, Viktor, Manchado, Arturo, Mao, Shude, Maraston, Claudia, Marques-Chaves, Rui, Masseron, Thomas, Masters, Karen L., McBride, Cameron K., McDermid, Richard M., McGrath, Brianne, McGreer, Ian D., Medina Peña, Nicolás, Melendez, Matthew, Merloni, Andrea, Merrifield, Michael R., Meszaros, Szabolcs, Meza, Andres, Minchev, Ivan, Minniti, Dante, Miyaji, Takamitsu, More, Surhud, Mulchaey, John, Müller-Sánchez, Francisco, Muna, Demitri, Munoz, Ricardo R., Myers, Adam D., Nair, Preethi, Nandra, Kirpal, Nascimento, Janaina Correa do, Negrete, Alenka, Ness, Melissa, Newman, Jeffrey A., Nichol, Robert C., Nidever, David L., Nitschelm, Christian, Ntelis, Pierros, O’Connell, Julia E., Oelkers, Ryan J., Oravetz, Audrey, Oravetz, Daniel, Pace, Zach, Padilla, Nelson, Palanque-Delabrouille, Nathalie, Palicio, Pedro Alonso, Pan, Kaike, Parejko, John K., Parikh, Taniya, Pâris, Isabelle, Park, Changbom, Patten, Alim Y., Peirani, Sebastien, Pellejero-Ibanez, Marcos, Penny, Samantha, Percival, Will J., Perez-Fournon, Ismael, Petitjean, Patrick, Pieri, Matthew M., Pinsonneault, Marc, Pisani, Alice, Poleski, Radosław, Prada, Francisco, Prakash, Abhishek, Queiroz, Anna Bárbara de Andrade, Raddick, M. Jordan, Raichoor, Anand, Rembold, Sandro Barboza, Richstein, Hannah, Riffel, Rogemar A., Riffel, Rogério, Rix, Hans-Walter, Robin, Annie C., Rockosi, Constance M., Rodríguez-Torres, Sergio, Roman-Lopes, A., Román-Zúñiga, Carlos, Rosado, Margarita, Ross, Ashley J., Rossi, Graziano, Ruan, John, Ruggeri, Rossana, Rykoff, Eli S., Salazar-Albornoz, Salvador, Salvato, Mara, Sánchez, Ariel G., Aguado, D. S., Sánchez-Gallego, José R., Santana, Felipe A., Santiago, Basílio Xavier, Sayres, Conor, Schiavon, Ricardo P., Schimoia, Jaderson da Silva, Schlafly, Edward F., Schlegel, David J., Schneider, Donald P., Schultheis, Mathias, Schuster, William J., Schwope, Axel, Seo, Hee-Jong, Shao, Zhengyi, Shen, Shiyin, Shetrone, Matthew, Shull, Michael, Simon, Joshua D., Skinner, Danielle, Skrutskie, M. F., Slosar, Anže, Smith, Verne V., Sobeck, Jennifer S., Sobreira, Flavia, Somers, Garrett, Souto, Diogo, Stark, David V., Stassun, Keivan, Stauffer, Fritz, Steinmetz, Matthias, Storchi-Bergmann, Thaisa, Streblyanska, Alina, Stringfellow, Guy S., Suárez, Genaro, Sun, Jing, Suzuki, Nao, Szigeti, Laszlo, Taghizadeh-Popp, Manuchehr, Tang, Baitian, Tao, Charling, Tayar, Jamie, Tembe, Mita, Teske, Johanna, Thakar, Aniruddha R., Thomas, Daniel, Thompson, Benjamin A., Tinker, Jeremy L., Tissera, Patricia, Tojeiro, Rita, Toledo, Hector Hernandez, Torre, Sylvain de la, Tremonti, Christy, Troup, Nicholas W., Valenzuela, Octavio, Valpuesta, Inma Martinez, Vargas-González, Jaime, Vargas-Magaña, Mariana, Vazquez, Jose Alberto, Villanova, Sandro, Vivek, M., Vogt, Nicole, Wake, David, Walterbos, Rene, Wang, Yuting, Weaver, Benjamin Alan, Weijmans, Anne-Marie, Weinberg, David H., Westfall, Kyle B., Whelan, David G., Wild, Vivienne, Wilson, John, Wood-Vasey, W. M., Wylezalek, Dominika, Xiao, Ting, Yan, Renbin, Yang, Meng, Ybarra, Jason E., Yèche, Christophe, Zakamska, Nadia, Zamora, Olga, Zarrouk, Pauline, Zasowski, Gail, Zhang, Kai, Zhao, Gong-Bo, Zheng, Zheng, Zhou, Xu, Zhou, Zhi-Min, Zhu, Guangtun B., Zoccali, Manuela, Zou, Hu

We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high re

Externí odkaz: http://hdl.handle.net/10150/624901
http://arizona.openrepository.com/arizona/handle/10150/624901

The Open Cluster Chemical Abundances and Mapping Survey: VI. Galactic Chemical Gradient Analysis from APOGEE DR17

Autor: Myers, Natalie, Donor, John, Spoo, Taylor, Frinchaboy, Peter M., Cunha, Katia, Price-Whelan, Adrian M., Majewski, Steven R., Beaton, Rachael L., Zasowski, Gail, O'Connell, Julia, Ray, Amy E., Bizyaev, Dmitry, Chiappini, Cristina, García-Hernández, D. A., Geisler, Doug, Jönsson, Henrik, Lane, Richard R., Longa-Peña, Penélope, Minchev, Ivan, Minniti, Dante, Nitschelm, Christian, Roman-Lopes, A.

The goal of the Open Cluster Chemical Abundances and Mapping (OCCAM) survey is to constrain key Galactic dynamic and chemical evolution parameters by the construction and analysis of a large, comprehensive, uniform data set of infrared spectra for st

Externí odkaz: http://arxiv.org/abs/2206.13650