SDSS-IV MaStar: A Large and Comprehensive Empirical Stellar Spectral Library—First Release

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.

[1]  D. Finkbeiner,et al.  A 3D Dust Map Based on Gaia, Pan-STARRS 1, and 2MASS , 2019, The Astrophysical Journal.

[2]  Benjamin Rose,et al.  The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library , 2018, The Astrophysical Journal Supplement Series.

[3]  C. Prieto,et al.  APOGEE Data Releases 13 and 14: Data and Analysis , 2018, The Astronomical Journal.

[4]  C. Bailer-Jones,et al.  Estimating Distance from Parallaxes. IV. Distances to 1.33 Billion Stars in Gaia Data Release 2 , 2018, The Astronomical Journal.

[5]  P. J. Richards,et al.  Gaia Data Release 2 , 2018, Astronomy & Astrophysics.

[6]  T. A. Lister,et al.  Gaia Data Release 2. Summary of the contents and survey properties , 2018, 1804.09365.

[7]  P. Sartoretti,et al.  The empirical Gaia G-band extinction coefficient , 2018, Astronomy & Astrophysics.

[8]  D. A. García-Hernández,et al.  University of Birmingham The Fourteenth Data Release of the Sloan Digital Sky Survey: , 2017 .

[9]  Daniel Thomas,et al.  The SDSS-IV MaNGA Sample: Design, Optimization, and Usage Considerations , 2017, 1707.02989.

[10]  Benjamin D. Johnson,et al.  The Extended IRTF Spectral Library: Expanded Coverage in Metallicity, Temperature, and Surface Gravity , 2017, 1705.08906.

[11]  Scott W. Fleming,et al.  A New Stellar Atmosphere Grid and Comparisons with HST/STIS CALSPEC Flux Distributions , 2017, 1704.00653.

[12]  Aniruddha R. Thakar,et al.  Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe , 2017, 1703.00052.

[13]  Keivan G. Stassun,et al.  The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory , 2016, 1608.02013.

[14]  John K. Parejko,et al.  SDSS-IV MaNGA IFS GALAXY SURVEY—SURVEY DESIGN, EXECUTION, AND INITIAL DATA QUALITY , 2016, 1607.08613.

[15]  Hai Fu,et al.  THE DATA REDUCTION PIPELINE FOR THE SDSS-IV MaNGA IFU GALAXY SURVEY , 2016, 1607.08619.

[16]  Chao Liu,et al.  CARBON STARS FROM LAMOST DR2 DATA , 2016, 1606.08932.

[17]  R. Peletier,et al.  MILES extended: Stellar population synthesis models from the optical to the infrared , 2016, 1609.05478.

[18]  H. Rix,et al.  Label Transfer from APOGEE to LAMOST: Precise Stellar Parameters for 450,000 LAMOST Giants , 2016, 1602.00303.

[19]  Nicholas Troup,et al.  ASPCAP: THE APOGEE STELLAR PARAMETER AND CHEMICAL ABUNDANCES PIPELINE , 2015, 1510.07635.

[20]  W. M. Wood-Vasey,et al.  THE SDSS-IV EXTENDED BARYON OSCILLATION SPECTROSCOPIC SURVEY: OVERVIEW AND EARLY DATA , 2015, 1508.04473.

[21]  M. Bershady,et al.  SDSS-IV/MaNGA: SPECTROPHOTOMETRIC CALIBRATION TECHNIQUE , 2015, 1511.01496.

[22]  Kai Zhang,et al.  OBSERVING STRATEGY FOR THE SDSS-IV/MaNGA IFU GALAXY SURVEY , 2015, 1505.04285.

[23]  Annie C. Robin,et al.  ABUNDANCES, STELLAR PARAMETERS, AND SPECTRA FROM THE SDSS-III/APOGEE SURVEY , 2015, 1501.04110.

[24]  Hilo,et al.  THE ELEVENTH AND TWELFTH DATA RELEASES OF THE SLOAN DIGITAL SKY SURVEY: FINAL DATA FROM SDSS-III , 2015, 1501.00963.

[25]  Larry Denneau,et al.  HYPERCALIBRATION: A PAN-STARRS1-BASED RECALIBRATION OF THE SLOAN DIGITAL SKY SURVEY PHOTOMETRY , 2015, 1512.01214.

[26]  N. Drory,et al.  THE MANGA INTEGRAL FIELD UNIT FIBER FEED SYSTEM FOR THE SLOAN 2.5 M TELESCOPE , 2014, 1412.1535.

[27]  Hai Fu,et al.  OVERVIEW OF THE SDSS-IV MaNGA SURVEY: MAPPING NEARBY GALAXIES AT APACHE POINT OBSERVATORY , 2014, 1412.1482.

[28]  C. Allende Prieto,et al.  Deep SDSS optical spectroscopy of distant halo stars - I. Atmospheric parameters and stellar metallicity distribution , 2014, 1406.4997.

[29]  P. Coelho.  A new library of theoretical stellar spectra with scaled-solar and α-enhanced mixtures , 2014, 1404.3243.

[30]  P. Prugniel,et al.  The X-shooter Spectral Library (XSL) - I. DR1: Near-ultraviolet through optical spectra from the first year of the survey , 2014, 1403.7009.

[31]  Paul M. Brunet,et al.  The Gaia mission , 2013, 1303.0303.

[32]  C. Conroy.  Modeling the Panchromatic Spectral Energy Distributions of Galaxies , 2013, 1301.7095.

[33]  M. Carr,et al.  Performance of the Apache Point Observatory Galactic Evolution Experiment (APOGEE) high-resolution near-infrared multi-object fiber spectrograph , 2012, Other Conferences.

[34]  L. Girardi,et al.  parsec: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code , 2012, 1208.4498.

[35]  Walter A. Siegmund,et al.  THE MULTI-OBJECT, FIBER-FED SPECTROGRAPHS FOR THE SLOAN DIGITAL SKY SURVEY AND THE BARYON OSCILLATION SPECTROSCOPIC SURVEY , 2012, 1208.2233.

[36]  W. M. Wood-Vasey,et al.  THE BARYON OSCILLATION SPECTROSCOPIC SURVEY OF SDSS-III , 2012, 1208.0022.

[37]  J. Falc'on-Barroso,et al.  MIUSCAT: extended MILES spectral coverage – I. Stellar population synthesis models , 2012, 1205.5496.

[38]  A. Recio-Blanco,et al.  The AMBRE project: A new synthetic grid of high-resolution FGKM stellar spectra , 2012, 1205.2270.

[39]  C. Maraston,et al.  Stellar population models at high spectral resolution , 2011, 1109.0543.

[40]  A. J. Cenarro,et al.  An updated MILES stellar library and stellar population models , 2011, 1107.2303.

[41]  Steven R. Majewski,et al.  LIFTING THE DUSTY VEIL WITH NEAR- AND MID-INFRARED PHOTOMETRY. I. DESCRIPTION AND APPLICATIONS OF THE RAYLEIGH–JEANS COLOR EXCESS METHOD , 2011, 1106.2542.

[42]  Austria,et al.  Age and metallicity gradients in early-type galaxies: A dwarf to giant sequence , 2011, 1105.4809.

[43]  L. KuruczRobert.  Including all the lines11This article is part of a Special Issue on the 10th International Colloquium on Atomic Spectra and Oscillator Strengths for Astrophysical and Laboratory Plasmas. , 2011 .

[44]  P. Prugniel,et al.  The atmospheric parameters and spectral interpolator for the MILES stars , 2011, 1104.4952.

[45]  E. Kirby.  Grids of ATLAS9 Model Atmospheres and MOOG Synthetic Spectra , 2011, 1103.1385.

[46]  D. Finkbeiner,et al.  Measuring Reddening with SDSS Stellar Spectra , 2011 .

[47]  Douglas P. Finkbeiner,et al.  MEASURING REDDENING WITH SLOAN DIGITAL SKY SURVEY STELLAR SPECTRA AND RECALIBRATING SFD , 2010, 1012.4804.

[48]  C. Leitherer,et al.  A LIBRARY OF THEORETICAL ULTRAVIOLET SPECTRA OF MASSIVE, HOT STARS FOR EVOLUTIONARY SYNTHESIS , 2010, 1006.5624.

[49]  A. J. Cenarro,et al.  Evolutionary stellar population synthesis with MILES – I. The base models and a new line index system , 2010, 1004.4439.

[50]  B. Plez,et al.  POLLUX: a database of synthetic stellar spectra , 2010, 1003.4682.

[51]  F. Allard,et al.  Synthetic stellar and SSP libraries as templates for Gaia simulations , 2010 .

[52]  Robert Barkhouser,et al.  The Apache Point Observatory Galactic Evolution Experiment (APOGEE) , 2007, Astronomical Telescopes + Instrumentation.

[53]  W. D. Vacca,et al.  THE INFRARED TELESCOPE FACILITY (IRTF) SPECTRAL LIBRARY: COOL STARS , 2009, 0909.0818.

[54]  B. Skiff,et al.  VizieR Online Data Catalog , 2009 .

[55]  Yue Wu,et al.  ULySS: a full spectrum fitting package , 2009, 0903.2979.

[56]  Heidi Jo Newberg,et al.  SEGUE: A SPECTROSCOPIC SURVEY OF 240,000 STARS WITH g = 14–20 , 2009, 0902.1781.

[57]  J. Gunn,et al.  THE ASTROPHYSICAL JOURNAL Preprint typeset using LATEX style emulateapj v. 10/09/06 THE PROPAGATION OF UNCERTAINTIES IN STELLAR POPULATION SYNTHESIS MODELING I: THE RELEVANCE OF UNCERTAIN ASPECTS OF STELLAR EVOLUTION AND THE IMF TO THE DERIVED PHYSICAL PR , 2022 .

[58]  B. Yanny,et al.  Submitted for publication in the Astronomical Journal The SEGUE Stellar Parameter Pipeline. III. Comparison with High-Resolution Spectroscopy of SDSS/SEGUE Field Stars 1 , 2022 .

[59]  Australian National University,et al.  THE SEGUE STELLAR PARAMETER PIPELINE. II. VALIDATION WITH GALACTIC GLOBULAR AND OPEN CLUSTERS , 2007, 0710.5778.

[60]  Y. Wadadekar,et al.  Submitted to ApJS Preprint typeset using L ATEX style emulateapj v. 10/09/06 THE SIXTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY , 2022 .

[61]  Australian National University,et al.  THE SEGUE STELLAR PARAMETER PIPELINE. I. DESCRIPTION AND COMPARISON OF INDIVIDUAL METHODS , 2007, 0710.5645.

[62]  J. Ferguson,et al.  Spectral models for solar-scaled and α-enhanced stellar populations , 2007, Monthly Notices of the Royal Astronomical Society.

[63]  R. Peletier,et al.  Medium-resolution Isaac Newton Telescope library of empirical spectra - II. The stellar atmospheric parameters , 2006, astro-ph/0611618.

[64]  R. Peletier,et al.  MILES: A Medium resolution INT Library of Empirical Spectra , 2006, astro-ph/0607009.

[65]  Anton M. Koekemoer,et al.  The 2005 HST Calibration Workshop Hubble After the Transition to Two-Gyro Mode , 2006 .

[66]  Walter A. Siegmund,et al.  # 2006. The American Astronomical Society. All rights reserved. Printed in U.S.A. THE 2.5 m TELESCOPE OF THE SLOAN DIGITAL SKY SURVEY , 2005 .

[67]  F. Kupka,et al.  Prospects for population synthesis in the H band: NeMo grids of stellar atmospheres compared to observations , 2005, astro-ph/0511125.

[68]  R. Schiavon,et al.  A library of high resolution synthetic stellar spectra from 300 nm to 1.8 μm with solar and α-enhanced composition , 2005, astro-ph/0505511.

[69]  A. Buzzoni,et al.  UVBLUE: A New High-Resolution Theoretical Library of Ultraviolet Stellar Spectra , 2005, astro-ph/0504307.

[70]  U. Munari,et al.  An extensive library of 2500–10 500 Å synthetic spectra , 2005, Astronomy & Astrophysics.

[71]  C. Leitherer,et al.  A high-resolution stellar library for evolutionary population synthesis , 2005, astro-ph/0501225.

[72]  C. Maraston.  Evolutionary population synthesis: models, analysis of the ingredients and application to high‐z galaxies , 2004, astro-ph/0410207.

[73]  T. Murphy,et al.  A library of high-resolution Kurucz spectra in the range λλ3000–10 000 , 2004, astro-ph/0404010.

[74]  Harinder P. Singh,et al.  The Indo-US Library of Coudé Feed Stellar Spectra , 2004, astro-ph/0402435.

[75]  Dept. of Physics,et al.  An extensive library of synthetic spectra covering the far red, RAVE and GAIA wavelength ranges , 2004, astro-ph/0401069.

[76]  G. Bruzual,et al.  Stellar population synthesis at the resolution of 2003 , 2003, astro-ph/0309134.

[77]  Beatriz Barbuy,et al.  A grid of synthetic spectra and indices Fe5270, Fe5335, Mgb and Mg$_\mathsf{2}$ as a function of stellar parameters and [ $\mathsf{\alpha}$/Fe] , 2003 .

[78]  R. Pelló,et al.  STELIB: A library of stellar spectra at R 2000 ?;?? , 2003, astro-ph/0302334.

[79]  Portugal,et al.  A standard stellar library for evolutionary synthesis - III. Metallicity calibration , 2001, astro-ph/0110559.

[80]  Spain.,et al.  Empirical calibration of the near-infrared Ca ii triplet — I. The stellar library and index definition , 2001, astro-ph/0109157.

[81]  P. Prugniel,et al.  A database of high and medium-resolution stellar spectra ?;?? , 2001, astro-ph/0101378.

[82]  P. Wood,et al.  A library of 0.5 to 2.5 m spectra of luminous cool stars , 2000 .

[83]  Denis Foo Kune,et al.  Starburst99: Synthesis Models for Galaxies with Active Star Formation , 1999, astro-ph/9902334.

[84]  Edward L. Fitzpatrick,et al.  Correcting for the Effects of Interstellar Extinction , 1998, astro-ph/9809387.

[85]  A. Pickles.  A Stellar Spectral Flux Library: 1150–25000 Å , 1998 .

[86]  D. Schlegel,et al.  Maps of Dust Infrared Emission for Use in Estimation of Reddening and Cosmic Microwave Background Radiation Foregrounds , 1998 .

[87]  C. Soubiran,et al.  On-line determination of stellar atmospheric parameters $T_{\mathrm{eff}}$, $\log g$, [Fe/H] from ELODIE echelle spectra - II. The library of F5 to K7 stars , 1998, astro-ph/9806234.

[88]  France.,et al.  A standard stellar library for evolutionary synthesis - II. The M dwarf extension , 1997, astro-ph/9710350.

[89]  D. Schlegel,et al.  Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds , 1997, astro-ph/9710327.

[90]  Strasbourg,et al.  A standard stellar library for evolutionary synthesis: I. calibration of theoretical spectra , 1997, astro-ph/9701019.

[91]  David Burstein,et al.  Old stellar populations. 5: Absorption feature indices for the complete LICK/IDS sample of stars , 1994 .

[92]  Christopher J. Corbally,et al.  The calibration of MK spectral classes using spectral synthesis. 1: The effective temperature calibration of dwarf stars , 1994 .

[93]  Mark E. Cornell,et al.  A New Library of Stellar Optical Spectra , 1992 .

[94]  J. B. Oke.  Faint Spectrophotometric Standard Stars , 1990 .

[95]  R. Terlevich,et al.  Near-IR features in late type stars: their relation with stellar atmosphere parameters , 1989 .

[96]  A. Pickles.  Differential population synthesis of early-type galaxies. I: Spectrophotometric atlas of synthesis standard spectra , 1985 .

[97]  J. E. Gunn,et al.  Stellar spectrophotometric atlas, wavelengths from 3130 to 10800 A , 1983 .

[98]  R. Kurucz.  Model atmospheres for G, F, A, B, and O stars , 1979 .