Zobrazeno 1 - 10
of 250
pro vyhledávání: '"Stringfellow, Guy"'
Autor:
Inight, Keith, Gänsicke, Boris T., Schwope, Axel, Anderson, Scott F., Breedt, Elmé, Brownstein, Joel R., Demasi, Sebastian, Friedrich, Susanne, Hermes, J. J., Long, Knox S., Mulvany, Timothy, Pallathadka, Gautham A., Salvato, Mara, Scaringi, Simone, Schreiber, Matthias R., Stringfellow, Guy S., Thorstensen, John R., Zakamska, Nadia L.
SDSS-V is carrying out a dedicated survey for white dwarfs, single and in binaries, and we report the analysis of the spectroscopy of 505 cataclysmic variables (CVs) and CV candidates obtained during the first 34 months of observations of SDSS-V. We
Externí odkaz:
http://arxiv.org/abs/2406.19459
Autor:
Drory, Niv, Blanc, Guillermo A., Kreckel, Kathryn, Sanchez, Sebastian F., Mejia-Narvaez, Alfredo, Johnston, Evelyn J., Jones, Amy M., Pellegrini, Eric W., Konidaris, Nicholas P., Herbst, Tom, Sanchez-Gallego, Jose, Kollmeier, Juna A., de Almeida, Florence, Barrera-Ballesteros, Jorge K., Bizyaev, Dmitry, Brownstein, Joel R., Saguer, Mar Canal i, Cherinka, Brian, Cioni, Maria-Rosa L., Congiu, Enrico, Cosens, Maren, Dias, Bruno, Donor, John, Egorov, Oleg, Egorova, Evgeniia, Froning, Cynthia S., Garcia, Pablo, Glover, Simon C. O., Greve, Hannah, Haeberle, Maximilian, Hoy, Kevin, Ibarra, Hector, Li, Jing, Klessen, Ralf S., Krishnarao, Dhanesh, Kumari, Nimisha, Long, Knox S., Mendez-Delgado, Jose Eduardo, Popa, Silvia Anastasia, Ramirez, Solange, Rix, Hans-Walter, Sanchez, Aurora Mata, Sankrit, Ravi, Sattler, Natascha, Sayres, Conor, Singh, Amrita, Stringfellow, Guy, Wachter, Stefanie, Watkins, Elizabeth Jayne, Wong, Tony, Wofford, Aida
We present the Sloan Digital Sky Survey V (SDSS-V) Local Volume Mapper (LVM). The LVM is an integral-field spectroscopic survey of the Milky Way, Magellanic Clouds, and of a sample of local volume galaxies, connecting resolved pc-scale individual sou
Externí odkaz:
http://arxiv.org/abs/2405.01637
Autor:
Schechter, Paul L., Sluse, Dominique, Zaborowski, Erik A., Drlica-Wagner, Alex, Lemon, Cameron, Courbin, Frederic, Hempel, Angela, Millon, Martin, Treu, Tommaso, Teixeira, Raul, Adamów, Monika, Bom, Clecio R., Carballo-Bello, Julio A., Ferguson, Peter S., Gruendl, Robert A., James, David J., Martinez-Vásquez, Clara E., Massana, Pol, Mau, Sidney, Mutlu-Pakdil, Burçin, Noël, Noëlia E. D., Pace, Andrew B., Sakowska, Joanna D., Stringfellow, Guy S., Tollerud, Erik J., Vivas, Kathy, Zenteno, Alfredo
A quadruply lensed source, J125856.3-031944, has been discovered using the DELVE survey and WISE W1 - W2 colors. Followup direct imaging carried out with the MPIA 2.2 m and the Baade 6.5 m telescopes is analyzed, as is spectroscopy from the 2.5 m Nor
Externí odkaz:
http://arxiv.org/abs/2404.14256
Autor:
Hill, Lewis, Maraston, Claudia, Thomas, Daniel, Yan, Renbin, Chen, Yanping, Stringfellow, Guy S., Lane, Richard R., Fernández-Trincado, José G.
Carbon- and Oxygen-rich stars populating the Thermally-Pulsing Asymptotic Giant Branch (TP-AGB) phase of stellar evolution are relevant contributors to the spectra of ~1 Gyr old populations. Atmosphere models for these types are uncertain, due to com
Externí odkaz:
http://arxiv.org/abs/2404.11541
Autor:
Serna, Javier, Pinzón, Giovanni, Hernández, Jesús, Manzo-Martínez, Ezequiel, Mauco, Karina, Román-Zúñiga, Carlos G., Calvet, Nuria, Briceño, Cesar, López-Valdivia, Ricardo, Kounkel, Marina, Stringfellow, Guy S., Stassun, Keivan G., Pinsonneault, Marc, Adame, Lucia, Cao, Lyra, Covey, Kevin, Bayo, Amelia, Roman-Lopes, Alexandre, Nitschelm, Christian, Lane, Richard R.
We developed a grid of stellar rotation models for low-mass and solar-type Classical T Tauri stars (CTTS) ($0.3M_{\odot}
Externí odkaz:
http://arxiv.org/abs/2403.07505
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:
Saad, Serat, Lane, Kaitlyn, Kounkel, Marina, Stassun, Keivan G., López-Valdivia, Ricardo, Kim, Jinyoung Serena, Ramírez, Karla Peña, Stringfellow, Guy S., Román-Zúñiga, Carlos G., Hernández, Jesús, Wolk, Scott J., Hillenbrand, Lynne A.
We developed a tool that measures equivalent widths of various lines in low resolution optical spectra, and it was applied to stellar spectra obtained as part of SDSS-V and LAMOST programs. These lines, such as Li I which directly indicates stellar y
Externí odkaz:
http://arxiv.org/abs/2401.01932
Autor:
Schiavon, Ricardo P., Phillips, Siân G., Myers, Natalie, Horta, Danny, Minniti, Dante, Prieto, Carlos Allende, Anguiano, Borja, Beaton, Rachael L., Beers, Timothy C., Brownstein, Joel R., Cohen, Roger E., Fernández-Trincado, José G., Frinchaboy, Peter M., Jönsson, Henrik, Kisku, Shobhit, Lane, Richard R., Majewski, Steven R., Mason, Andrew C., Mészáros, Szabolcs, Stringfellow, Guy S.
We introduce the SDSS/APOGEE Value Added Catalogue of Galactic Globular Cluster (GC) Stars. The catalogue is the result of a critical search of the APOGEE data release 17 (DR17) catalogue for candidate members of all known Galactic GCs. Candidate mem
Externí odkaz:
http://arxiv.org/abs/2310.07764
Autor:
Povick, Joshua T., Nidever, David L., Majewski, Steven R., Geisler, Doug, Cioni, Maria-Rosa L., Yuxi, Lu, Muñoz, Ricardo, Stringfellow, Guy S., Almeida, Andrés, Longa-Peña, Penélope, Lane, Richard R., Roman-Lopes, Alexandre
We present the abundance gradients of the Large Magellanic Cloud (LMC) for 25 elemental abundance ratios and their respective temporal evolution as well as age-[X/Fe] trends using 6130 LMC field red giant branch (RGB) stars observed by SDSS-IV / APOG
Externí odkaz:
http://arxiv.org/abs/2309.12503