Zobrazeno 31 - 40
of 845
pro vyhledávání: '"Majewski, Steven R."'
Autor:
Quispe-Huaynasi, Fredi, Roig, Fernando, McDonald, Devin J., Loaiza-Tacuri, Veronica, Majewski, Steven R., Wanderley, Fabio C., Cunha, Katia, Pereira, Claudio B., Hasselquist, Sten, Daflon, Simone
We report 23 stars having Galactocentric velocities larger than $450~\mathrm{km\,s}^{-1}$ in the final data release of the APOGEE survey. This sample was generated using space velocities derived by complementing the high quality radial velocities fro
Externí odkaz:
http://arxiv.org/abs/2209.03560
Autor:
Guerço, Rafael, Smith, Verne V., Cunha, Katia, Ekström, Sylvia, Abia, Carlos, Plez, Bertrand, Meynet, Georges, Ramirez, Solange V., Prantzos, Nikos, Sellgren, Kris, Hayes, Cristian R., Majewski, Steven R.
The center of the Milky Way contains stellar populations spanning a range in age and metallicity, with a recent star formation burst producing young and massive stars. Chemical abundances in the most luminous stellar member of the Nuclear Star Cluste
Externí odkaz:
http://arxiv.org/abs/2208.10529
Autor:
Hayes, Christian R., Masseron, Thomas, Sobeck, Jennifer, Garcia-Hernandez, D. A., Prieto, Carlos Allende, Beaton, Rachael L., Cunha, Katia, Hasselquist, Sten, Holtzman, Jon A., Jonsson, Henrik, Majewski, Steven R., Shetrone, Matthew, Smith, Verne V., Almeida, Andres
Elements with weak and blended spectral features in stellar spectra are challenging to measure and require specialized analysis methods to precisely measure their chemical abundances. In this work, we have created a catalog of approximately 120,000 g
Externí odkaz:
http://arxiv.org/abs/2208.00071
Autor:
Anguiano, Borja, Majewski, Steven R., Stassun, Keivan G., Badenes, Carles, Daher, Christine Mazzola, Dixon, Don, Prieto, Carlos Allende, Schneider, Donald P., Price-Whelan, Adrian M., Beaton, Rachael L.
We created the APOGEE-GALEX-\emph{Gaia} catalog to study white dwarfs binaries. This database aims to create a minimally biased sample of WD binary systems identified from a combination of GALEX, {\it Gaia}, and APOGEE data to increase the number of
Externí odkaz:
http://arxiv.org/abs/2207.13992
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
Autor:
Savino, Alessandro, Weisz, Daniel R., Skillman, Evan D., Dolphin, Andrew, Kallivayalil, Nitya, Wetzel, Andrew, Anderson, Jay, Besla, Gurtina, Boylan-Kolchin, Michael, Bullock, James S., Cole, Andrew A., Collins, Michelle L. M., Cooper, M. C., Deason, Alis J., Dotter, Aaron L., Fardal, Mark, Ferguson, Annette M. N., Fritz, Tobias K., Geha, Marla C., Gilbert, Karoline M., Guhathakurta, Puragra, Ibata, Rodrigo, Irwin, Michael J., Jeon, Myoungwon, Kirby, Evan, Lewis, Geraint F., Mackey, Dougal, Majewski, Steven R., Martin, Nicolas, McConnachie, Alan, Patel, Ekta, Rich, R. Michael, Simon, Joshua D., Sohn, Sangmo Tony, Tollerud, Erik J., van der Marel, Roeland P.
We measure homogeneous distances to M31 and 38 associated stellar systems ($-$16.8$\le M_V \le$ $-$6.0), using time-series observations of RR Lyrae stars taken as part of the Hubble Space Telescope Treasury Survey of M31 Satellites. From $>700$ orbit
Externí odkaz:
http://arxiv.org/abs/2206.02801
Autor:
Bonidie, Victoria, Court, Travis, Daher, Christine Mazzola, Fielder, Catherine E., Badenes, Carles, Newman, Jeffrey, Moe, Maxwell, Kratter, Kaitlin M., Walker, Matthew G., Majewski, Steven R., Hayes, Christian R., Hasselquist, Sten, Stassun, Keivan, Kounkel, Marina, Dixon, Don, Stringfellow, Guy S., Carlberg, Joleen, Anguiano, Borja, De Lee, Nathan, Troup, Nicholas
We use time-resolved spectra from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) to examine the distribution of radial velocity (RV) variations in 249 stars identified as members of the Sagittarius (Sgr) dwarf spheroidal (dSph) g
Externí odkaz:
http://arxiv.org/abs/2204.09750
Autor:
Spoo, Taylor, Tayar, Jamie, Frinchaboy, Peter M., Cunha, Katia, Myers, Natalie, Donor, John, Majewski, Steven R., Bizyaev, Dmitry, Garcia-Hernandez, D. A., Jonsson, Henrik, Lane, Richard R., Pan, Kaike, Longa-Pena, Penelope, Roman-Lopes, A.
Large scale surveys open the possibility to investigate Galactic evolution both chemically and kinematically, however, reliable stellar ages remain a major challenge. Detailed chemical information provided by high-resolution spectroscopic surveys of
Externí odkaz:
http://arxiv.org/abs/2203.05463
Autor:
Cheng, Xinlun, Choi, Yumi, Olsen, Knut, Nidever, David L., Majewski, Steven R., Monachesi, Antonela, Besla, Gurtina, Muñoz, César, Anguiano, Borja, Almeida, Andres, Muñoz, Ricardo R., Lane, Richard R., Nitschelm, Christian
We report the first 3-D kinematical measurements of 88 stars in the direction of several recently discovered substructures in the southern periphery of the Large Magellanic Cloud (LMC) using a combination of Gaia proper motions and radial velocities
Externí odkaz:
http://arxiv.org/abs/2202.12789
Autor:
Souto, Diogo, Cunha, Katia, Smith, Verne V., García-Hernández, D. A., Holtzman, Jon A., Jönsson, Henrik, Mahadevan, Suvrath, Majewski, Steven R., Masseron, Thomas, Pinsonneault, Marc, Schneider, Donald P., Shetrone, Matthew, Stassun, Keivan G., Terrien, Ryan, Zamora, Olga, Stringfellow, Guy S., Lane, Richard R., Nitschelm, Christian, Rojas-Ayala, Bárbara
Individual chemical abundances for fourteen elements (C, O, Na, Mg, Al, Si, K, Ca, Ti, V, Cr, Mn, Fe, and Ni) are derived for a sample of M-dwarfs using high-resolution near-infrared $H$-band spectra from the SDSS-IV/APOGEE survey. The quantitative a
Externí odkaz:
http://arxiv.org/abs/2201.00891