Zobrazeno 1 - 10
of 400
pro vyhledávání: '"SMITH, VERNE V."'
We explore the elemental abundances in Galactic planetary nebulae (PNe) compared with those of their stellar progenitors (Red Giant Branch and Asymptotic Giant Branch, RGB and AGB, stars), to explore and quantify the expected -- i.e., due to AGB evol
Externí odkaz:
http://arxiv.org/abs/2407.05780
Autor:
Wanderley, Fabio, Cunha, Katia, Kochukhov, Oleg, Smith, Verne V., Souto, Diogo, Cao, Lyra, Covey, Kevin, Majewski, Steven R., Martinez, Cintia, Muirhead, Philip S., Pinsonneault, Marc, Prieto, C. Allende, Stassun, Keivan G.
Average magnetic field measurements are presented for 62 M-dwarf members of the Pleiades open cluster, derived from Zeeman-enhanced Fe I lines in the H-band. An MCMC methodology was employed to model magnetic filling factors using SDSS-IV APOGEE high
Externí odkaz:
http://arxiv.org/abs/2406.13757
Autor:
Melo, Edypo, Souto, Diogo, Cunha, Katia, Smith, Verne V., Wanderley, Fábio, Grilo, Vinicius, Camara, Deusalete, Murta, Kely, Hejazi, Neda, Crossfield, Ian J. M., Teske, Johanna, Luque, Rafael, Zhang, Michael, Bean, Jacob
Exoplanets hosting M dwarfs are the best targets to characterize Earth-like or super-Earth planetary atmospheres with the James Webb Space Telescope (JWST). We determine detailed stellar parameters ($T_{\rm eff}$, log$g$, and $\xi$) and individual ab
Externí odkaz:
http://arxiv.org/abs/2406.00111
Autor:
Loaiza-Tacuri, V., Cunha, Katia, Smith, Verne V., Quispe-Huaynasi, F., Costa-Almeida, Ellen, Ghezzi, Luan, Melendez, Jorge
Effective temperatures, surface gravities, and iron abundances were derived for 109 stars observed by the K2 mission using equivalent width measurements of Fe I and Fe II lines. Calculations were carried out in LTE using Kurucz model atmospheres. Ste
Externí odkaz:
http://arxiv.org/abs/2405.08128
Autor:
McCormick, Caroline, Majewski, Steven R., Smith, Verne V., Hayes, Christian R., Cunha, Katia, Masseron, Thomas, Weiss, Achim, Shetrone, Matthew, Almeida, Andrés, Frinchaboy, Peter M., García-Hernández, Domingo Aníbal, Nitschelm, Christian
Standard stellar evolution theory poorly predicts the surface abundances of chemical species in low-mass, red giant branch (RGB) stars. Observations show an enhancement of p-p chain and CNO cycle products in red giant envelopes, which suggests the ex
Externí odkaz:
http://arxiv.org/abs/2307.11191
Autor:
Povick, Joshua T., Nidever, David L., Massana, Pol, Tayar, Jamie, Olsen, Knut A. G., Hasselquist, Sten, Cioni, Maria-Rosa L., Nitschelm, Christian, Carrera, Ricardo, Choi, Yumi, Roman-Lopes, Alexandre, Majewski, Steven R., Almeida, Andrés, Cunha, Katia, Smith, Verne V.
Stellar ages are critical for understanding the temporal evolution of a galaxy. We calculate the ages of over 6000 red giant branch stars in the Large Magellanic Cloud (LMC) observed with SDSS-IV / APOGEE-S. Ages are derived using multi-band photomet
Externí odkaz:
http://arxiv.org/abs/2306.06348
Autor:
Prieto, Carlos Allende, Aguado, David S., Hernández, Jonay I. González, Rebolo, Rafael, Najita, Joan, Manser, Christopher J., Rockosi, Constance, Slepian, Zachary, Mezcua, Mar, Valluri, Monica, Ezzeddine, Rana, Koposov, Sergey E., Cooper, Andrew P., Dey, Arjun, Gänsicke, Boris T., Li, Ting S., Cunha, Katia, Zou, Siwei, Aguilar, Jessica Nicole, Ahlen, Steven, Brooks, David, Claybaugh, Todd, Cole, Shaun, Eftekharzadeh, Sarah, Fanning, Kevin, Forero-Romero, Jaime, Gontcho, Satya Gontcho A, Honscheid, Klaus, Jablonka, Pascale, Kehoe, Robert, Kisner, Theodore, Landriau, Martin, de la Macorra, Axel, Meisner, Aaron, Miquel, Ramón, Moustakas, John, Nie, Jundan, Poppett, Claire, Prada, Francisco, Rezaie, Mehdi, Rossi, Graziano, Sánchez, Eusebio, Schubnell, Michael, Sharples, Ray, Siudek, Malgorzata, Smith, Verne V., Tarlé, Gregory, Vincenzo, Fiorenzo, Weaver, Benjamin Alan, Zhou, Zhimin, Zou, Hu
The observations from the Dark Energy Spectroscopic Instrument (DESI) will significantly increase the numbers of known extremely metal-poor stars by a factor of ~ 10, improving the sample statistics to study the early chemical evolution of the Milky
Externí odkaz:
http://arxiv.org/abs/2306.06321
Autor:
García Pérez, Ana E., Ness, Melissa, Robin, Annie C., Martinez-Valpuesta, Inma, Sobeck, Jennifer, Zasowski, Gail, Majewski, Steven R., Bovy, Jo, Prieto, Carlos Allende, Cunha, Katia, Girardi, Léo, Mészáros, Szabolcs, Nidever, David, Schiavon, Ricardo P., Schultheis, Mathias, Shetrone, Matthew, Smith, Verne V.
The Apache Point Observatory Galactic Evolution Experiment (APOGEE) provides spectroscopic information of regions of the inner Milky Way, which are inaccessible to optical surveys. We present the first large study of the metallicity distribution of t
Externí odkaz:
http://hdl.handle.net/10150/626538
http://arizona.openrepository.com/arizona/handle/10150/626538
http://arizona.openrepository.com/arizona/handle/10150/626538
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
http://arizona.openrepository.com/arizona/handle/10150/626539
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