SDSS-IV MaStar: A Large and Comprehensive Empirical Stellar Spectral Library-First Release
Por:
Yan R., Chen Y., Lazarz D., Bizyaev D., Maraston C., Stringfellow G.S., Mccarthy K., Meneses-Goytia S., Law D.R., Thomas D., Barroso J.F., Sánchez-Gallego J.R., Schlafly E., Zheng Z., Argudo-Fernández M., Beaton R.L., Beers T.C., Bershady M., Blanton M.R., Brownstein J., Bundy K., Chambers K.C., Cherinka B., Lee N.D., Drory N., Galbany L., Holtzman J., Imig J., Kaiser N., Kinemuchi K., Liu C., Luo A.-L., Magnier E., Majewski S., Nair P., Oravetz A., Oravetz D., Pan K., Sobeck J., Stassun K., Talbot M., Tremonti C., Waters C., Weijmans A.-M., Wilhelm R., Zasowski G., Zhao G., Zhao Y.-H.
Publicada:
1 ene 2019
Resumen:
We present the first release of the MaNGA Stellar Library (MaStar), which is a large, well-calibrated, high-quality empirical library covering the wavelength range 3622-10354 Å at a resolving power of R ~ 1800. The spectra were obtained using the same instrument as used by the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) project, by piggybacking on the Sloan Digital Sky Survey (SDSS-IV)/Apache Point Observatory Galaxy Evolution Experiment 2-N (APOGEE-2N) observations. Compared to previous empirical libraries, the MaStar library will have a higher number of stars and a more comprehensive stellar-parameter coverage, especially of cool dwarfs, low-metallicity stars, and stars with different [a/Fe], achieved by a sophisticated target-selection strategy that takes advantage of stellar-parameter catalogs from the literature. This empirical library will provide a new basis for stellar-population synthesis and is particularly well suited for stellar-population analysis of MaNGA galaxies. The first version of the library contains 8646 high-quality per-visit spectra for 3321 unique stars. Compared to photometry, the relative flux calibration of the library is accurate to 3.9% in g-r, 2.7% in r-i, and 2.2% in i-z. The data are released as part of SDSS Data Release 15. We expect the final release of the library to contain more than 10,000 stars. © 2019 The American Astronomical Society. All rights reserved.
Filiaciones:
Yan R.:
Department of Physics and Astronomy, University of Kentucky, 505 Rose St., Lexington, KY 40506-0057, United States
Chen Y.:
New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, United Arab Emirates
Lazarz D.:
Department of Physics and Astronomy, University of Kentucky, 505 Rose St., Lexington, KY 40506-0057, United States
Bizyaev D.:
Apache Point Observatory, New Mexico State University, P.O. Box 59, Sunspot, NM 88349, United States
Sternberg Astronomical Institute, Moscow State University, Universitetskij pr. 13, Moscow, Russian Federation
Maraston C.:
Institute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Portsmouth, PO13FX, United Kingdom
Stringfellow G.S.:
Center for Astrophysics and Space Astronomy, Department of Astrophysical and Planetary Sciences, University of Colorado, 389 UCB, Boulder, CO 80309-0389, United States
Mccarthy K.:
Department of Physics and Astronomy, University of Kentucky, 505 Rose St., Lexington, KY 40506-0057, United States
Meneses-Goytia S.:
Institute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Portsmouth, PO13FX, United Kingdom
Department of Physics, University of Surrey, Guildford, GU27XH, United Kingdom
Law D.R.:
Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, United States
Thomas D.:
Institute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Portsmouth, PO13FX, United Kingdom
Barroso J.F.:
Instituto de Astrofísica de Canarias, Viá Láctea s/n, La Laguna Tenerife, E-38205, Spain
Departamento de Astrofísica, Universidad de La Laguna, La Laguna Tenerife, E-38200, Spain
Sánchez-Gallego J.R.:
Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, United States
Schlafly E.:
Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, United States
Zheng Z.:
National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Rd., Chaoyang District Beijing, 100012, China
Argudo-Fernández M.:
Instituto de Física, Pontificia Universidad Católica de Valparaíso, Casilla, Valparaíso, 4059, Chile
Beaton R.L.:
Department of Astrophysical Sciences, Princeton University, 4 Ivy Ln., Princeton, NJ 08544, United States
Observatories of the Carnegie Institution for Science, 813 Santa Barbara St., Pasadena, CA 91101, United States
Beers T.C.:
Department of Physics, JINA, Center for the Evolution of the Elements, University of Notre Dame, Notre Dame, IN 46530, United States
Bershady M.:
Department of Astronomy, University of Wisconsin-Madison, 475 N. Charter St., Madison, WI 53726, United States
South African Astronomical Observatory, Cape Town, South Africa
Blanton M.R.:
Center for Cosmology and Particle Physics, Department of Physics, New York University, Room 1005 726 Broadway, New York, NY 10003, United States
Brownstein J.:
Department of Physics and Astronomy, University of Utah, 115 S. 1400 E., Salt Lake City, UT 84112, United States
Bundy K.:
University of California Observatories, University of California, Santa Cruz, CA 95064, United States
Chambers K.C.:
Institute for Astronomy, University of Hawaii, Honolulu, HI, United States
Cherinka B.:
Department of Physics and Astronomy, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, United States
Lee N.D.:
Department of Physics Geology and Engineering Technology, Northern Kentucky University, Highland Heights, KY 41099, United States
Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235, United States
Drory N.:
McDonald Observatory, University of Texas at Austin, 1 University Station, Austin, TX 78712, United States
Galbany L.:
PITT PACC, Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, United States
Holtzman J.:
Department of Astronomy, New Mexico State University, Box 30001, MSC 4500, Las Cruces, NM 88003, United States
Imig J.:
Department of Astronomy, New Mexico State University, Box 30001, MSC 4500, Las Cruces, NM 88003, United States
Kaiser N.:
Institute for Astronomy, University of Hawaii, Honolulu, HI, United States
Kinemuchi K.:
Apache Point Observatory, New Mexico State University, P.O. Box 59, Sunspot, NM 88349, United States
Liu C.:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China
Luo A.-L.:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China
Magnier E.:
Institute for Astronomy, University of Hawaii, Honolulu, HI, United States
Majewski S.:
Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904-4325, United States
Nair P.:
Department of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487-0324, United States
Oravetz A.:
Apache Point Observatory, New Mexico State University, P.O. Box 59, Sunspot, NM 88349, United States
Oravetz D.:
Apache Point Observatory, New Mexico State University, P.O. Box 59, Sunspot, NM 88349, United States
Pan K.:
Apache Point Observatory, New Mexico State University, P.O. Box 59, Sunspot, NM 88349, United States
Sobeck J.:
Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, United States
Stassun K.:
Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235, United States
Talbot M.:
Department of Physics and Astronomy, University of Utah, 115 S. 1400 E., Salt Lake City, UT 84112, United States
Tremonti C.:
Department of Astronomy, University of Wisconsin-Madison, 475 N. Charter St., Madison, WI 53726, United States
Waters C.:
Institute for Astronomy, University of Hawaii, Honolulu, HI, United States
Weijmans A.-M.:
School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, KY169SS, United Kingdom
Wilhelm R.:
Department of Physics and Astronomy, University of Kentucky, 505 Rose St., Lexington, KY 40506-0057, United States
Zasowski G.:
Department of Physics and Astronomy, University of Utah, 115 S. 1400 E., Salt Lake City, UT 84112, United States
Zhao G.:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China
Zhao Y.-H.:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China
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