Search Results - "Shetrone, Matthew"

Binarity in carbon-enhanced metal-poor stars by Starkenburg, Else, Shetrone, Matthew D., McConnachie, Alan W., Venn, Kim A.

“…A substantial fraction of the lowest metallicity stars show very high enhancements in carbon. It is debated whether these enhancements reflect the stars’ birth…”
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THE STELLAR POPULATION STRUCTURE OF THE GALACTIC DISK by Bovy, Jo, Rix, Hans-Walter, Schlafly, Edward F., Nidever, David L., Holtzman, Jon A., Shetrone, Matthew, Beers, Timothy C.

“…ABSTRACT The spatial structure of stellar populations with different chemical abundances in the Milky Way (MW) contains a wealth of information on Galactic…”
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The massive M31 cluster G1: detailed chemical abundances from integrated light spectroscopy by Sakari, Charli M, Shetrone, Matthew D, McWilliam, Andrew, Wallerstein, George

“…ABSTRACT G1, also known as Mayall II, is one of the most massive star clusters in M31. Its mass, ellipticity, and location in the outer halo make it a…”
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The origin of accreted stellar halo populations in the Milky Way using APOGEE, Gaia , and the EAGLE simulations by Mackereth, J Ted, Schiavon, Ricardo P, Pfeffer, Joel, Hayes, Christian R, Bovy, Jo, Anguiano, Borja, Prieto, Carlos Allende, Hasselquist, Sten, Holtzman, Jon, Johnson, Jennifer A, Majewski, Steven R, O’Connell, Robert, Shetrone, Matthew, Tissera, Patricia B, Fernández-Trincado, J G

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CARBON IN RED GIANTS IN GLOBULAR CLUSTERS AND DWARF SPHEROIDAL GALAXIES by Kirby, Evan N, Guo, Michelle, Zhang, Andrew J, Deng, Michelle, Cohen, Judith G, Guhathakurta, Puragra, Shetrone, Matthew D, Lee, Young Sun, Rizzi, Luca

“…We present carbon abundances of red giants in Milky Way (MW) globular clusters and dwarf spheroidal galaxies (dSphs). Our sample includes measurements of…”
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CHEMICAL TAGGING IN THE SDSS-III/APOGEE SURVEY: NEW IDENTIFICATIONS OF HALO STARS WITH GLOBULAR CLUSTER ORIGINS by Martell, Sarah L., Shetrone, Matthew D., Lucatello, Sara, Schiavon, Ricardo P., Mészáros, Szabolcs, Prieto, Carlos Allende, Hernández, D. A. García, Beers, Timothy C., Nidever, David L

“…ABSTRACT We present new identifications of five red giant stars in the Galactic halo with chemical abundance patterns that indicate they originally formed in…”
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Constraining Metallicity-dependent Mixing and Extra Mixing Using [C/N] in Alpha-rich Field Giants by Shetrone, Matthew, Tayar, Jamie, Johnson, Jennifer A., Somers, Garrett, Pinsonneault, Marc H., Holtzman, Jon A., Hasselquist, Sten, Masseron, Thomas, Mészáros, Szabolcs, Jönsson, Henrik, Hawkins, Keith, Sobeck, Jennifer, Zamora, Olga, García-Hernández, D. A.

“…Internal mixing on the giant branch is an important process which affects the evolution of stars and the chemical evolution of the galaxy. While several…”
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The S2 stream: the shreds of a primitive dwarf galaxy by Aguado, David S, Myeong, G C, Belokurov, Vasily, Evans, N Wyn, Koposov, Sergey E, Allende Prieto, Carlos, Lanfranchi, Gustavo A, Matteucci, Francesca, Shetrone, Matthew, Sbordone, Luca, Navarrete, Camila, González Hernández, Jonay I, Chanamé, Julio, Peralta de Arriba, Luis, Yuan, Zhen

“…ABSTRACT The S2 stream is a kinematically cold stream that is plunging downwards through the Galactic disc. It may be part of a hotter and more diffuse…”
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NUCLEOSYNTHESIS AND THE INHOMOGENEOUS CHEMICAL EVOLUTION OF THE CARINA DWARF GALAXY by Venn, Kim A, Shetrone, Matthew D, Irwin, Mike J, Hill, Vanessa, Jablonka, Pascale, Tolstoy, Eline, LEMASLE, BERTRAND, DIVELL, MIKE, Starkenburg, Else, Letarte, Bruno, Baldner, Charles, Battaglia, Giuseppina, Helmi, Amina, Kaufer, Andreas, Primas, Francesca

“…The detailed abundances of 23 chemical elements in nine bright red giant branch stars in the Carina dwarf spheroidal galaxy are presented based on…”
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CHEMICAL ABUNDANCES IN FIELD RED GIANTS FROM HIGH-RESOLUTION H -BAND SPECTRA USING THE APOGEE SPECTRAL LINELIST by Smith, Verne V, Cunha, Katia, Shetrone, Matthew D, Meszaros, Szabolcs, Prieto, Carlos Allende, Bizyaev, Dmitry, Perez, Ana Garcia, Majewski, Steven R, Schiavon, Ricardo, Holtzman, Jon, Johnson, Jennifer A

“…High-resolution H-band spectra of five bright field K, M, and MS giants, obtained from the archives of the Kitt Peak National Observatory Fourier transform…”
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Evolved Eclipsing Binaries and the Age of the Open Cluster NGC 752 by Sandquist, Eric L., Buckner, Andrew J., Shetrone, Matthew D., Barden, Samuel C., Pilachowski, Catherine A., Deliyannis, Constantine P., Harmer, Dianne, Mathieu, Robert, Meibom, Søren, Frandsen, Søren, Orosz, Jerome A.

“…Abstract We present analyses of improved photometric and spectroscopic observations for two detached eclipsing binaries at the turnoff of the open cluster NGC…”
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THE AGE AND DISTANCE OF THE KEPLER OPEN CLUSTER NGC 6811 FROM AN ECLIPSING BINARY, TURNOFF STAR PULSATION, AND GIANT ASTEROSEISMOLOGY by Sandquist, Eric L., Jessen-Hansen, J., Shetrone, Matthew D., Brogaard, Karsten, Meibom, Søren, Leitner, Marika, Stello, Dennis, Bruntt, Hans, Antoci, Victoria, Orosz, Jerome A., Grundahl, Frank, Frandsen, Søren

“…ABSTRACT We present the analysis of an eccentric, partially eclipsing long-period ( P = 19.23 days) binary system KIC 9777062 that contains main-sequence stars…”
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IDENTIFICATION OF NEODYMIUM IN THE APOGEE H-BAND SPECTRA by Hasselquist, Sten, Shetrone, Matthew, Cunha, Katia, Smith, Verne V., Holtzman, Jon, Lawler, J. E., Prieto, Carlos Allende, Beers, Timothy C., Chojnowski, Drew, Fernández-Trincado, J. G., García-Hernández, D. A., Hearty, Fred R., Majewski, Steven R., Pereira, C. B., Placco, Vinicius M., Villanova, Sandro, Zamora, Olga

“…ABSTRACT We present the detection of 10 lines of singly ionized neodymium (Nd ii, Z = 60) in H-band spectra using observations from the SDSS-III Apache Point…”
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The Hobby–Eberly Telescope VIRUS Parallel Survey (HETVIPS) by Zeimann, Gregory R., Debski, Maya H., Schneider, Donald P., Bowman, William P., Drory, Niv, Hill, Gary J., Lee, Hanshin, MacQueen, Phillip, Shetrone, Matthew

“…Abstract The Hobby–Eberly Telescope (HET) VIRUS Parallel Survey (HETVIPS) is a blind spectroscopic program that sparsely covers approximately two-thirds of the…”
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Stellar Characterization of M Dwarfs from the APOGEE Survey: A Calibrator Sample for M-dwarf Metallicities by Souto, Diogo, Cunha, Katia, Smith, Verne V., Allende Prieto, C., Burgasser, Adam, Covey, Kevin, García-Hernández, D. A., Holtzman, Jon A., Johnson, Jennifer A., Jönsson, Henrik, Mahadevan, Suvrath, Majewski, Steven R., Masseron, Thomas, Shetrone, Matthew, Rojas-Ayala, Bárbara, Sobeck, Jennifer, Stassun, Keivan G., Terrien, Ryan, Teske, Johanna, Wanderley, Fábio, Zamora, Olga

“…We present spectroscopic determinations of the effective temperatures, surface gravities, and metallicities for 21 M dwarfs observed at high resolution (R ∼…”
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INFRARED HIGH-RESOLUTION INTEGRATED LIGHT SPECTRAL ANALYSES OF M31 GLOBULAR CLUSTERS FROM APOGEE by Sakari, Charli M., Shetrone, Matthew D., Schiavon, Ricardo P., Bizyaev, Dmitry, Prieto, Carlos Allende, Beers, Timothy C., Caldwell, Nelson, García-Hernández, Domingo Aníbal, Lucatello, Sara, Majewski, Steven, O'Connell, Robert W., Pan, Kaike, Strader, Jay

“…ABSTRACT Chemical abundances are presented for 25 M31 globular clusters (GCs), based on moderately high resolution (R = 22,500) H-band integrated light (IL)…”
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Integrated light chemical tagging analyses of seven M31 outer halo globular clusters from the Pan-Andromeda Archaeological Survey by Sakari, Charli M., Venn, Kim A., Mackey, Dougal, Shetrone, Matthew D., Dotter, Aaron, Ferguson, Annette M. N., Huxor, Avon

“…Detailed chemical abundances are presented for seven M31 outer halo globular clusters (with projected distances from M31 greater than 30 kpc), as derived from…”
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The Bulge Metallicity Distribution from the APOGEE Survey by 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…”
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The Chemical Abundances of Stars in the Halo (CASH) Project. II. A Sample of 14 Extremely Metal-poor Stars by Hollek, Julie K, Frebel, Anna, Roederer, Ian U, Sneden, Christopher, Shetrone, Matthew, Beers, Timothy C, Kang, Sung-ju, Thom, Christopher

“…We present a comprehensive abundance analysis of 20 elements for 16 new low-metallicity stars from the Chemical Abundances of Stars in the Halo (CASH) project…”
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Abundance Patterns in the Draco, Sextans, and Ursa Minor Dwarf Spheroidal Galaxies by Shetrone, Matthew D, Côté, Patrick, Sargent, W. L. W

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