J/ApJ/899/62ivo://CDS.VizieR/J/ApJ/899/62doi:10.26093/cds/vizier.18990062CDSChen Y.-P.Yan R.Maraston C.Thomas D.Stringfellow G.S.Bizyaev D.,Gelfand J.D.Beers T.C.Fernandez-Trincado J.G.Lazarz D.Hill L.,Drory N.Stassun K.G.2023-03-10T06:15:18Z2021-11-03T09:20:12ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsurveysvisible-astronomyspectroscopyinfrared-astronomymetallicityeffective-temperatureWe report the stellar atmospheric parameters for 7503 spectra contained in the first release of the Mapping Nearby Galaxies at Apache Point Observatory survey (MaNGA) stellar library (MaStar) in Sloan Digital Sky Survey DR15. The first release of MaStar contains 8646 spectra measured from 3321 unique stars, each covering the wavelength range 3622-10354{AA} with a resolving power of R~1800. In this work, we first determined the basic stellar parameters: effective temperature (Teff), surface gravity (logg), and metallicity ([Fe/H]), which best fit the data using an empirical interpolator based on the Medium-resolution Isaac Newton Telescope library of empirical spectra (MILES), as implemented by the University of Lyon Spectroscopic analysis Software package. While we analyzed all 8646 spectra from the first release of MaStar, since MaStar has a wider parameter-space coverage than MILES, not all of these fits are robust. In addition, not all parameter regions covered by MILES yield robust results, likely due to the nonuniform coverage of the parameter space by MILES. We tested the robustness of the method using the MILES spectra itself and identified a proxy based on the local density of the training set. With this proxy, we identified 7503 MaStar spectra with robust fitting results. They cover the range from 3179 to 20517K in effective temperature (Teff), from 0.40 to 5.0 in surface gravity (logg), and from -2.49 to +0.73 in metallicity ([Fe/H]).2020ApJ...899...62Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/899/62CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/166 : A New Library of Optical Spectra (Silva + 1992)III/218 : ELODIE archive (Prugniel+, 2001)III/232 : STELIB: A library of stellar spectra at R~2000 (Le Borgne+, 2003)VI/39 : Model Atmospheres (Kurucz, 1979)VII/102 : Spectrophotometric Atlas of Standard Stellar Spectra (Pickles, 1985)VI/120 : High-resolution synthetic stellar library (Coelho+, 2005)J/ApJS/94/687 : Old stellar populations. V. (Worthey+, 1994)J/A+AS/130/65 : A standard stellar library. II. (Lejeune+ 1998)J/PASP/110/863 : A Stellar Spectral Flux Library: 1150 - 25000 A (Pickles,1998)J/A+AS/146/217 : Library of Spectra (0.5 to 2.5um) of Cool Stars (Lancon+,2000)J/MNRAS/326/959 : Empirical calibration of near-IR Ca triplet (Cenarro+, 2001)J/ApJS/152/251 : Indo-US library of coude feed stellar spectra (Valdes+, 2004)J/A+A/417/1055 : Extensive library of synthetic spectra (Zwitter+, 2004)J/A+A/442/1127 : Library of 2500-10500{AA} synthetic spectra (Munari+, 2005)J/MNRAS/371/703 : MILES library of empirical spectra (Sanchez-Blazquez+, 2006)J/MNRAS/374/664 : Stellar atmospheric param. in MILES library (Cenarro+, 2007)J/MNRAS/389/585 : Fundamental parameters of M dwarfs (Casagrande+, 2008)J/AJ/137/4377 : List of SEGUE plate pairs (Yanny+, 2009)J/MNRAS/404/1639 : MILES base models & new line index system (Vazdekis+, 2010)J/A+A/531/A165 : MILES atmospheric parameters (Prugniel+, 2011)J/A+A/525/A71 : Atmospheric parameters for 1273 stars (Wu+, 2011)J/A+A/551/A36 : Metallicity of M dwarfs. III. (Neves+, 2013)J/A+A/565/A117 : X-Shooter Spectral Library (XSL). DR1 (Chen+, 2014)J/AJ/151/144 : ASPCAP weights for 15 APOGEE chemical elements (Garcia+, 2016)J/A+A/585/A64 : New atmospheric parameters of MILES cool stars (Sharma+, 2016)J/AJ/156/126 : Stellar param. & abund. from BACCHUS analysis (Jonsson+, 2018)J/ApJ/883/175 : 1st release of the MaNGA Stellar Library (MaStar) (Yan+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/899/62https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/899/62http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/899/62https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/899/62https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/899/62http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/899/62GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/899/62/table1 (MaStar stellar parameters derived in this work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/899/62/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/899/62/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/899/62/table1?GETtext/xml+votable180.050000true288.1181751.44758810.0055555555555555565/119 226 642 1019 1063 1069 1134 1233 1286 1312 1466 1814 1820 1946 2241 2294 2530 2545 2589 2713-2714 2848 2922 2995 2998 3101 3521 3630 3646 3734 3739 3780 4221 5467 5574 5713-5715 5718 5720-5721 5723 6061 6505 6743 6752 6871 6905 6977 7061 7160 7329 7901 7906 9131 11250 12007 6/375 383 399 408 421 434-435 455 461-463 467-468 470-471 473-475 484 486-487 496 498 898 902-903 908 911 975 997-999 1003-1004 1006-1008 1010 1018 1064 1557 1559 1600 1602-1603 2155-2156 2158 2244-2245 2372-2373 2427-2429 2431 2513 2516-2517 2563 2572 2574 2592 2613 2615 2621 2657-2659 2664 3112 3114 3200 4070-4071 4074-4075 4090 4298 4320 4322 4527 4542 4565 4567 4573 4869 4880-4881 4883-4884 4931 4937 4940-4941 4946 4952 5138-5139 5142 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14730 14733 14744 14753-14754 14757-14758 14760 14763-14765 14767 14770-14771 14776 14779 14782 14827 14831 14919 14921-14924 14926-14927 14929-14931 14933 14940 14942 14946-14950 14953 14955 14960-14961 14964 14966-14967 14969-14970 14973 14975 15044-15045 15060-15061 15104 15109 15114-15115 15118-15119 15126 15131-15134 15136-15137 15139-15141 15146 15152 15155-15158 15168-15169 15171-15172 15232 16883 16892 17570 17671 17676-17678 17688 17690-17691 17710 17712-17713 17796 17798-17799 17810 18007 18013 18015 18034 18038 18040-18042 18044 18046-18047 18089-18092 18094-18095 18184-18186 19182 19457 19460 20158 21428 21435 21438 21482 21486 21857-21860 21862-21865 21867 22111 22279-22280 22282-22283 22285 22287 22290-22291 22300 22783 22801 22804-22805 22807 22815 22838-22839 22849-22851 22864 22866-22867 22870 22876 22878-22879 22896 22898 22906 22952-22954 22958 22980 23187 23189-23190 23196-23198 23296 23298-23300 23468-23469 23471 23482 23719 23730 23736-23737 24017 24019 24022-24026 24028 24030 24222-24223 24266 24288 24290 25998 26017 26019 26025 26028-26029 26161-26164 26166-26169 26172-26173 26543 26923 26963 26966-26967 26969 26971 26993 26996-26997 27012 27014-27017 27020 27479 27481 27483 27508-27509 27629 27632 27634 27640 27658 27680 27902-27903 27905 27907 27913 27916-27917 27922 27928 28168 28170 28192 28241 28243 28252-28253 28416 28418 28599 28619 28622 28644 28646 28648-28649 28940-28942 28946 28952 28954-28955 28964-28965 28976 29230 29328 29835 29857 29860-29861 29868-29869 30122 30293 30295 30301 30464-30466 30472 31112 31115 31118 31136 31397 31399 31404-31405 31408 31410-31411 31416-31418 31445-31447 31452-31453 31455 31577-31579 31581-31583 31601 31603 31616 31618-31619 31769 31771 31773 31775 31796-31797 31840 36515 36518-36519 36536 36538 36651 36654-36655 36737 36739 36741-36743 44957 44959 44981 45024-45026 48022 48052-48053 48074https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/899/62?format=asciiOpticalInfrareddefaultJ/ApJ/899/62/table1MaStar stellar parameters derived in this workrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameMaNGA identifiermeta.id;meta.maincharRAJ2000[0.76/356] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-31/86.5] Declination (J2000)degpos.eq.dec;meta.mainTeff[3179/20517] Effective temperatureKphys.temperature.effectiveintlogg[0.41/5] log, surface gravitylog(cm.s**-2)phys.gravityfloat[Fe/H][-2.5/0.73] Metallicityphys.abund.Zfloate_Teff[0/118] Uncertainty in TeffKstat.error;phys.temperature.effectiveinte_logg[0/0.14] Uncertainty in logglog(cm.s**-2)stat.errorfloate_[Fe/H][0/0.09] Uncertainty in [Fe/H]stat.error;phys.abund.Fefloatchi[0.55/130.46] Reduced {chi}^2^ of fitstat.fit.chi2floatSimbadSimbad column added by the CDSmeta.ref.urlchar