Abundances, stellar parameters, and spectra from the SDSS-III/APOGEE survey

Jon A. Holtzman, Matthew Shetrone, Jennifer A. Johnson, Carlos Allende Prieto, Friedrich Anders, Brett Andrews, Timothy C. Beers, Dmitry Bizyaev, Michael R. Blanton, Jo Bovy, Ricardo Carrera, S. Drew Chojnowski, Katia Cunha, Daniel J. Eisenstein, Diane Feuillet, Peter M. Frinchaboy, Jessica Galbraith-Frew, Ana E García Pérez, D. A. García-Hernández, Sten Hasselquist & 23 others Michael R. Hayden, Fred R. Hearty, Inese Ivans, Steven R. Majewski, Sarah Martell, Szabolcs Meszaros, Demitri Muna, David Nidever, Duy Cuong Nguyen, Robert W. O'Connell, Kaike Pan, Marc Pinsonneault, Annie C. Robin, Ricardo P. Schiavon, Neville Shane, Jennifer Sobeck, Verne V. Smith, Nicholas Troup, David H. Weinberg, John C. Wilson, W. M. Wood-Vasey, Olga Zamora, Gail Zasowski

    Research output: Contribution to journalArticle

    Abstract

    The SDSS-III/Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey operated from 2011-2014 using the APOGEE spectrograph, which collects high-resolution (R ∼ 22,500), near-IR (1.51-1.70 μm) spectra with a multiplexing (300 fiber-fed objects) capability. We describe the survey data products that are publicly available, which include catalogs with radial velocity, stellar parameters, and 15 elemental abundances for over 150,000 stars, as well as the more than 500,000 spectra from which these quantities are derived. Calibration relations for the stellar parameters (Teff, log g, [M/H], [α/M]) and abundances (C, N, O, Na, Mg, Al, Si, S, K, Ca, Ti, V, Mn, Fe, Ni) are presented and discussed. The internal scatter of the abundances within clusters indicates that abundance precision is generally between 0.05 and 0.09 dex across a broad temperature range; it is smaller for some elemental abundances within more limited ranges and at high signal-to-noise ratio. We assess the accuracy of the abundances using comparison of mean cluster metallicities with literature values, APOGEE observations of the solar spectrum and of Arcturus, comparison of individual star abundances with other measurements, and consideration of the locus of derived parameters and abundances of the entire sample, and find that it is challenging to determine the absolute abundance scale; external accuracy may be good to 0.1-0.2 dex. Uncertainties may be larger at cooler temperatures (Teff <4000K). Access to the public data release and data products is described, and some guidance for using the data products is provided.

    Original languageEnglish (US)
    Article number148
    JournalAstronomical Journal
    Volume150
    Issue number5
    DOIs
    StatePublished - Nov 1 2015

    Fingerprint

    galactic evolution
    observatories
    observatory
    data products
    experiment
    parameter
    stars
    solar spectra
    loci
    coolers
    multiplexing
    radial velocity
    signal-to-noise ratio
    spectrographs
    metallicity
    catalogs
    signal to noise ratios
    temperature
    calibration
    fibers

    Keywords

    • astronomical databases: miscellaneous
    • Galaxy: abundances
    • stars: abundances
    • surveys

    ASJC Scopus subject areas

    • Space and Planetary Science
    • Astronomy and Astrophysics

    Cite this

    Holtzman, J. A., Shetrone, M., Johnson, J. A., Prieto, C. A., Anders, F., Andrews, B., ... Zasowski, G. (2015). Abundances, stellar parameters, and spectra from the SDSS-III/APOGEE survey. Astronomical Journal, 150(5), [148]. https://doi.org/10.1088/0004-6256/150/5/148

    Abundances, stellar parameters, and spectra from the SDSS-III/APOGEE survey. / Holtzman, Jon A.; Shetrone, Matthew; Johnson, Jennifer A.; Prieto, Carlos Allende; Anders, Friedrich; Andrews, Brett; Beers, Timothy C.; Bizyaev, Dmitry; Blanton, Michael R.; Bovy, Jo; Carrera, Ricardo; Chojnowski, S. Drew; Cunha, Katia; Eisenstein, Daniel J.; Feuillet, Diane; Frinchaboy, Peter M.; Galbraith-Frew, Jessica; Pérez, Ana E García; García-Hernández, D. A.; Hasselquist, Sten; Hayden, Michael R.; Hearty, Fred R.; Ivans, Inese; Majewski, Steven R.; Martell, Sarah; Meszaros, Szabolcs; Muna, Demitri; Nidever, David; Nguyen, Duy Cuong; O'Connell, Robert W.; Pan, Kaike; Pinsonneault, Marc; Robin, Annie C.; Schiavon, Ricardo P.; Shane, Neville; Sobeck, Jennifer; Smith, Verne V.; Troup, Nicholas; Weinberg, David H.; Wilson, John C.; Wood-Vasey, W. M.; Zamora, Olga; Zasowski, Gail.

    In: Astronomical Journal, Vol. 150, No. 5, 148, 01.11.2015.

    Research output: Contribution to journalArticle

    Holtzman, JA, Shetrone, M, Johnson, JA, Prieto, CA, Anders, F, Andrews, B, Beers, TC, Bizyaev, D, Blanton, MR, Bovy, J, Carrera, R, Chojnowski, SD, Cunha, K, Eisenstein, DJ, Feuillet, D, Frinchaboy, PM, Galbraith-Frew, J, Pérez, AEG, García-Hernández, DA, Hasselquist, S, Hayden, MR, Hearty, FR, Ivans, I, Majewski, SR, Martell, S, Meszaros, S, Muna, D, Nidever, D, Nguyen, DC, O'Connell, RW, Pan, K, Pinsonneault, M, Robin, AC, Schiavon, RP, Shane, N, Sobeck, J, Smith, VV, Troup, N, Weinberg, DH, Wilson, JC, Wood-Vasey, WM, Zamora, O & Zasowski, G 2015, 'Abundances, stellar parameters, and spectra from the SDSS-III/APOGEE survey', Astronomical Journal, vol. 150, no. 5, 148. https://doi.org/10.1088/0004-6256/150/5/148
    Holtzman JA, Shetrone M, Johnson JA, Prieto CA, Anders F, Andrews B et al. Abundances, stellar parameters, and spectra from the SDSS-III/APOGEE survey. Astronomical Journal. 2015 Nov 1;150(5). 148. https://doi.org/10.1088/0004-6256/150/5/148
    Holtzman, Jon A. ; Shetrone, Matthew ; Johnson, Jennifer A. ; Prieto, Carlos Allende ; Anders, Friedrich ; Andrews, Brett ; Beers, Timothy C. ; Bizyaev, Dmitry ; Blanton, Michael R. ; Bovy, Jo ; Carrera, Ricardo ; Chojnowski, S. Drew ; Cunha, Katia ; Eisenstein, Daniel J. ; Feuillet, Diane ; Frinchaboy, Peter M. ; Galbraith-Frew, Jessica ; Pérez, Ana E García ; García-Hernández, D. A. ; Hasselquist, Sten ; Hayden, Michael R. ; Hearty, Fred R. ; Ivans, Inese ; Majewski, Steven R. ; Martell, Sarah ; Meszaros, Szabolcs ; Muna, Demitri ; Nidever, David ; Nguyen, Duy Cuong ; O'Connell, Robert W. ; Pan, Kaike ; Pinsonneault, Marc ; Robin, Annie C. ; Schiavon, Ricardo P. ; Shane, Neville ; Sobeck, Jennifer ; Smith, Verne V. ; Troup, Nicholas ; Weinberg, David H. ; Wilson, John C. ; Wood-Vasey, W. M. ; Zamora, Olga ; Zasowski, Gail. / Abundances, stellar parameters, and spectra from the SDSS-III/APOGEE survey. In: Astronomical Journal. 2015 ; Vol. 150, No. 5.
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    abstract = "The SDSS-III/Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey operated from 2011-2014 using the APOGEE spectrograph, which collects high-resolution (R ∼ 22,500), near-IR (1.51-1.70 μm) spectra with a multiplexing (300 fiber-fed objects) capability. We describe the survey data products that are publicly available, which include catalogs with radial velocity, stellar parameters, and 15 elemental abundances for over 150,000 stars, as well as the more than 500,000 spectra from which these quantities are derived. Calibration relations for the stellar parameters (Teff, log g, [M/H], [α/M]) and abundances (C, N, O, Na, Mg, Al, Si, S, K, Ca, Ti, V, Mn, Fe, Ni) are presented and discussed. The internal scatter of the abundances within clusters indicates that abundance precision is generally between 0.05 and 0.09 dex across a broad temperature range; it is smaller for some elemental abundances within more limited ranges and at high signal-to-noise ratio. We assess the accuracy of the abundances using comparison of mean cluster metallicities with literature values, APOGEE observations of the solar spectrum and of Arcturus, comparison of individual star abundances with other measurements, and consideration of the locus of derived parameters and abundances of the entire sample, and find that it is challenging to determine the absolute abundance scale; external accuracy may be good to 0.1-0.2 dex. Uncertainties may be larger at cooler temperatures (Teff <4000K). Access to the public data release and data products is described, and some guidance for using the data products is provided.",
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    AU - Shetrone, Matthew

    AU - Johnson, Jennifer A.

    AU - Prieto, Carlos Allende

    AU - Anders, Friedrich

    AU - Andrews, Brett

    AU - Beers, Timothy C.

    AU - Bizyaev, Dmitry

    AU - Blanton, Michael R.

    AU - Bovy, Jo

    AU - Carrera, Ricardo

    AU - Chojnowski, S. Drew

    AU - Cunha, Katia

    AU - Eisenstein, Daniel J.

    AU - Feuillet, Diane

    AU - Frinchaboy, Peter M.

    AU - Galbraith-Frew, Jessica

    AU - Pérez, Ana E García

    AU - García-Hernández, D. A.

    AU - Hasselquist, Sten

    AU - Hayden, Michael R.

    AU - Hearty, Fred R.

    AU - Ivans, Inese

    AU - Majewski, Steven R.

    AU - Martell, Sarah

    AU - Meszaros, Szabolcs

    AU - Muna, Demitri

    AU - Nidever, David

    AU - Nguyen, Duy Cuong

    AU - O'Connell, Robert W.

    AU - Pan, Kaike

    AU - Pinsonneault, Marc

    AU - Robin, Annie C.

    AU - Schiavon, Ricardo P.

    AU - Shane, Neville

    AU - Sobeck, Jennifer

    AU - Smith, Verne V.

    AU - Troup, Nicholas

    AU - Weinberg, David H.

    AU - Wilson, John C.

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    AU - Zamora, Olga

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