TY - JOUR
T1 - SDSS-IV MaStar
T2 - A Large and Comprehensive Empirical Stellar Spectral Library-First Release
AU - Yan, Renbin
AU - Chen, Yanping
AU - Lazarz, Daniel
AU - Bizyaev, Dmitry
AU - Maraston, Claudia
AU - Stringfellow, Guy S.
AU - Mccarthy, Kyle
AU - Meneses-Goytia, Sofia
AU - Law, David R.
AU - Thomas, Daniel
AU - Barroso, Jesus Falcon
AU - Sánchez-Gallego, José R.
AU - Schlafly, Edward
AU - Zheng, Zheng
AU - Argudo-Fernández, Maria
AU - Beaton, Rachael L.
AU - Beers, Timothy C.
AU - Bershady, Matthew
AU - Blanton, Michael R.
AU - Brownstein, Joel
AU - Bundy, Kevin
AU - Chambers, Kenneth C.
AU - Cherinka, Brian
AU - Lee, Nathan De
AU - Drory, Niv
AU - Galbany, Lluís
AU - Holtzman, Jon
AU - Imig, Julie
AU - Kaiser, Nick
AU - Kinemuchi, Karen
AU - Liu, Chao
AU - Luo, A. Li
AU - Magnier, Eugene
AU - Majewski, Steven
AU - Nair, Preethi
AU - Oravetz, Audrey
AU - Oravetz, Daniel
AU - Pan, Kaike
AU - Sobeck, Jennifer
AU - Stassun, Keivan
AU - Talbot, Michael
AU - Tremonti, Christy
AU - Waters, Christopher
AU - Weijmans, Anne Marie
AU - Wilhelm, Ronald
AU - Zasowski, Gail
AU - Zhao, Gang
AU - Zhao, Yong Heng
N1 - Publisher Copyright:
© 2019 The American Astronomical Society. All rights reserved.
PY - 2019
Y1 - 2019
N2 - 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 [α/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.
AB - 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 [α/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.
KW - Galaxy: Stellar content
KW - catalogs
KW - stars: Fundamental parameters
KW - stars: General
KW - techniques: Spectroscopic
UR - http://www.scopus.com/inward/record.url?scp=85073688903&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85073688903&partnerID=8YFLogxK
U2 - 10.3847/1538-4357/ab3ebc
DO - 10.3847/1538-4357/ab3ebc
M3 - Article
AN - SCOPUS:85073688903
SN - 0004-637X
VL - 883
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
M1 - 175
ER -