The APOKASC catalog: An asteroseismic and spectroscopic joint survey of targets in the Kepler fields

Marc H. Pinsonneault; Yvonne Elsworth; Courtney Epstein; Saskia Hekker; Sz Mészáros; William J. Chaplin; Jennifer A. Johnson; Rafael A. García; Jon Holtzman; Savita Mathur; Ana García Pérez; Victor Silva Aguirre; Léo Girardi; Sarbani Basu; Matthew Shetrone; Dennis Stello; Carlos Allende Prieto; Deokkeun An; Paul Beck; Timothy C. Beers; Dmitry Bizyaev; Steven Bloemen; Jo Bovy; Katia Cunha; Joris De Ridder; Peter M. Frinchaboy; D. A. García-Hernández; Ronald Gilliland; Paul Harding; Fred R. Hearty; Daniel Huber; Inese Ivans; Thomas Kallinger; Steven R. Majewski; Travis S. Metcalfe; Andrea Miglio; Benoit Mosser; Demitri Muna; David L. Nidever; Donald P. Schneider; Aldo Serenelli; Verne V. Smith; Jamie Tayar; Olga Zamora; Gail Zasowski

doi:10.1088/0067-0049/215/2/19

The APOKASC catalog: An asteroseismic and spectroscopic joint survey of targets in the Kepler fields

Marc H. Pinsonneault, Yvonne Elsworth, Courtney Epstein, Saskia Hekker, Sz Mészáros, William J. Chaplin, Jennifer A. Johnson, Rafael A. García, Jon Holtzman, Savita Mathur, Ana García Pérez, Victor Silva Aguirre, Léo Girardi, Sarbani Basu, Matthew Shetrone, Dennis Stello, Carlos Allende Prieto, Deokkeun An, Paul Beck, Timothy C. BeersDmitry Bizyaev, Steven Bloemen, Jo Bovy, Katia Cunha, Joris De Ridder, Peter M. Frinchaboy, D. A. García-Hernández, Ronald Gilliland, Paul Harding, Fred R. Hearty, Daniel Huber, Inese Ivans, Thomas Kallinger, Steven R. Majewski, Travis S. Metcalfe, Andrea Miglio, Benoit Mosser, Demitri Muna, David L. Nidever, Donald P. Schneider, Aldo Serenelli, Verne V. Smith, Jamie Tayar, Olga Zamora, Gail Zasowski

Steward Observatory

Research output: Contribution to journal › Article › peer-review

100 Scopus citations

Abstract

We present the first APOKASC catalog of spectroscopic and asteroseismic properties of 1916 red giants observed in the Kepler fields. The spectroscopic parameters provided from the Apache Point Observatory Galactic Evolution Experiment project are complemented with asteroseismic surface gravities, masses, radii, and mean densities determined by members of the Kepler Asteroseismology Science Consortium. We assess both random and systematic sources of error and include a discussion of sample selection for giants in the Kepler fields. Total uncertainties in the main catalog properties are of the order of 80 K in T _eff, 0.06 dex in [M/H], 0.014 dex in log g, and 12% and 5% in mass and radius, respectively; these reflect a combination of systematic and random errors. Asteroseismic surface gravities are substantially more precise and accurate than spectroscopic ones, and we find good agreement between their mean values and the calibrated spectroscopic surface gravities. There are, however, systematic underlying trends with T _eff and log g. Our effective temperature scale is between 0 and 200 K cooler than that expected from the infrared flux method, depending on the adopted extinction map, which provides evidence for a lower value on average than that inferred for the Kepler Input Catalog (KIC). We find a reasonable correspondence between the photometric KIC and spectroscopic APOKASC metallicity scales, with increased dispersion in KIC metallicities as the absolute metal abundance decreases, and offsets in T _eff and log g consistent with those derived in the literature. We present mean fitting relations between APOKASC and KIC observables and discuss future prospects, strengths, and limitations of the catalog data.

Original language	English (US)
Article number	19
Journal	Astrophysical Journal, Supplement Series
Volume	215
Issue number	2
DOIs	https://doi.org/10.1088/0067-0049/215/2/19
State	Published - Jan 1 2015

Keywords

catalogs
stars: abundances
stars: fundamental parameters
stars: oscillations (including pulsations)
surveys

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1088/0067-0049/215/2/19

Cite this

Pinsonneault, M. H., Elsworth, Y., Epstein, C., Hekker, S., Mészáros, S., Chaplin, W. J., Johnson, J. A., García, R. A., Holtzman, J., Mathur, S., García Pérez, A., Silva Aguirre, V., Girardi, L., Basu, S., Shetrone, M., Stello, D., Allende Prieto, C., An, D., Beck, P., ... Zasowski, G. (2015). The APOKASC catalog: An asteroseismic and spectroscopic joint survey of targets in the Kepler fields. Astrophysical Journal, Supplement Series, 215(2), Article 19. https://doi.org/10.1088/0067-0049/215/2/19

Pinsonneault, MH, Elsworth, Y, Epstein, C, Hekker, S, Mészáros, S, Chaplin, WJ, Johnson, JA, García, RA, Holtzman, J, Mathur, S, García Pérez, A, Silva Aguirre, V, Girardi, L, Basu, S, Shetrone, M, Stello, D, Allende Prieto, C, An, D, Beck, P, Beers, TC, Bizyaev, D, Bloemen, S, Bovy, J, Cunha, K, De Ridder, J, Frinchaboy, PM, García-Hernández, DA, Gilliland, R, Harding, P, Hearty, FR, Huber, D, Ivans, I, Kallinger, T, Majewski, SR, Metcalfe, TS, Miglio, A, Mosser, B, Muna, D, Nidever, DL, Schneider, DP, Serenelli, A, Smith, VV, Tayar, J, Zamora, O & Zasowski, G 2015, 'The APOKASC catalog: An asteroseismic and spectroscopic joint survey of targets in the Kepler fields', Astrophysical Journal, Supplement Series, vol. 215, no. 2, 19. https://doi.org/10.1088/0067-0049/215/2/19

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title = "The APOKASC catalog: An asteroseismic and spectroscopic joint survey of targets in the Kepler fields",

abstract = "We present the first APOKASC catalog of spectroscopic and asteroseismic properties of 1916 red giants observed in the Kepler fields. The spectroscopic parameters provided from the Apache Point Observatory Galactic Evolution Experiment project are complemented with asteroseismic surface gravities, masses, radii, and mean densities determined by members of the Kepler Asteroseismology Science Consortium. We assess both random and systematic sources of error and include a discussion of sample selection for giants in the Kepler fields. Total uncertainties in the main catalog properties are of the order of 80 K in T eff, 0.06 dex in [M/H], 0.014 dex in log g, and 12% and 5% in mass and radius, respectively; these reflect a combination of systematic and random errors. Asteroseismic surface gravities are substantially more precise and accurate than spectroscopic ones, and we find good agreement between their mean values and the calibrated spectroscopic surface gravities. There are, however, systematic underlying trends with T eff and log g. Our effective temperature scale is between 0 and 200 K cooler than that expected from the infrared flux method, depending on the adopted extinction map, which provides evidence for a lower value on average than that inferred for the Kepler Input Catalog (KIC). We find a reasonable correspondence between the photometric KIC and spectroscopic APOKASC metallicity scales, with increased dispersion in KIC metallicities as the absolute metal abundance decreases, and offsets in T eff and log g consistent with those derived in the literature. We present mean fitting relations between APOKASC and KIC observables and discuss future prospects, strengths, and limitations of the catalog data.",

keywords = "catalogs, stars: abundances, stars: fundamental parameters, stars: oscillations (including pulsations), surveys",

author = "Pinsonneault, {Marc H.} and Yvonne Elsworth and Courtney Epstein and Saskia Hekker and Sz M{\'e}sz{\'a}ros and Chaplin, {William J.} and Johnson, {Jennifer A.} and Garc{\'i}a, {Rafael A.} and Jon Holtzman and Savita Mathur and {Garc{\'i}a P{\'e}rez}, Ana and {Silva Aguirre}, Victor and L{\'e}o Girardi and Sarbani Basu and Matthew Shetrone and Dennis Stello and {Allende Prieto}, Carlos and Deokkeun An and Paul Beck and Beers, {Timothy C.} and Dmitry Bizyaev and Steven Bloemen and Jo Bovy and Katia Cunha and {De Ridder}, Joris and Frinchaboy, {Peter M.} and Garc{\'i}a-Hern{\'a}ndez, {D. A.} and Ronald Gilliland and Paul Harding and Hearty, {Fred R.} and Daniel Huber and Inese Ivans and Thomas Kallinger and Majewski, {Steven R.} and Metcalfe, {Travis S.} and Andrea Miglio and Benoit Mosser and Demitri Muna and Nidever, {David L.} and Schneider, {Donald P.} and Aldo Serenelli and Smith, {Verne V.} and Jamie Tayar and Olga Zamora and Gail Zasowski",

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doi = "10.1088/0067-0049/215/2/19",

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T2 - An asteroseismic and spectroscopic joint survey of targets in the Kepler fields

AU - Pinsonneault, Marc H.

AU - Elsworth, Yvonne

AU - Epstein, Courtney

AU - Hekker, Saskia

AU - Mészáros, Sz

AU - Chaplin, William J.

AU - Johnson, Jennifer A.

AU - García, Rafael A.

AU - Holtzman, Jon

AU - Mathur, Savita

AU - García Pérez, Ana

AU - Silva Aguirre, Victor

AU - Girardi, Léo

AU - Basu, Sarbani

AU - Shetrone, Matthew

AU - Stello, Dennis

AU - Allende Prieto, Carlos

AU - An, Deokkeun

AU - Beck, Paul

AU - Beers, Timothy C.

AU - Bizyaev, Dmitry

AU - Bloemen, Steven

AU - Bovy, Jo

AU - Cunha, Katia

AU - De Ridder, Joris

AU - Frinchaboy, Peter M.

AU - García-Hernández, D. A.

AU - Gilliland, Ronald

AU - Harding, Paul

AU - Hearty, Fred R.

AU - Huber, Daniel

AU - Ivans, Inese

AU - Kallinger, Thomas

AU - Majewski, Steven R.

AU - Metcalfe, Travis S.

AU - Miglio, Andrea

AU - Mosser, Benoit

AU - Muna, Demitri

AU - Nidever, David L.

AU - Schneider, Donald P.

AU - Serenelli, Aldo

AU - Smith, Verne V.

AU - Tayar, Jamie

AU - Zamora, Olga

AU - Zasowski, Gail

PY - 2015/1/1

Y1 - 2015/1/1

N2 - We present the first APOKASC catalog of spectroscopic and asteroseismic properties of 1916 red giants observed in the Kepler fields. The spectroscopic parameters provided from the Apache Point Observatory Galactic Evolution Experiment project are complemented with asteroseismic surface gravities, masses, radii, and mean densities determined by members of the Kepler Asteroseismology Science Consortium. We assess both random and systematic sources of error and include a discussion of sample selection for giants in the Kepler fields. Total uncertainties in the main catalog properties are of the order of 80 K in T eff, 0.06 dex in [M/H], 0.014 dex in log g, and 12% and 5% in mass and radius, respectively; these reflect a combination of systematic and random errors. Asteroseismic surface gravities are substantially more precise and accurate than spectroscopic ones, and we find good agreement between their mean values and the calibrated spectroscopic surface gravities. There are, however, systematic underlying trends with T eff and log g. Our effective temperature scale is between 0 and 200 K cooler than that expected from the infrared flux method, depending on the adopted extinction map, which provides evidence for a lower value on average than that inferred for the Kepler Input Catalog (KIC). We find a reasonable correspondence between the photometric KIC and spectroscopic APOKASC metallicity scales, with increased dispersion in KIC metallicities as the absolute metal abundance decreases, and offsets in T eff and log g consistent with those derived in the literature. We present mean fitting relations between APOKASC and KIC observables and discuss future prospects, strengths, and limitations of the catalog data.

AB - We present the first APOKASC catalog of spectroscopic and asteroseismic properties of 1916 red giants observed in the Kepler fields. The spectroscopic parameters provided from the Apache Point Observatory Galactic Evolution Experiment project are complemented with asteroseismic surface gravities, masses, radii, and mean densities determined by members of the Kepler Asteroseismology Science Consortium. We assess both random and systematic sources of error and include a discussion of sample selection for giants in the Kepler fields. Total uncertainties in the main catalog properties are of the order of 80 K in T eff, 0.06 dex in [M/H], 0.014 dex in log g, and 12% and 5% in mass and radius, respectively; these reflect a combination of systematic and random errors. Asteroseismic surface gravities are substantially more precise and accurate than spectroscopic ones, and we find good agreement between their mean values and the calibrated spectroscopic surface gravities. There are, however, systematic underlying trends with T eff and log g. Our effective temperature scale is between 0 and 200 K cooler than that expected from the infrared flux method, depending on the adopted extinction map, which provides evidence for a lower value on average than that inferred for the Kepler Input Catalog (KIC). We find a reasonable correspondence between the photometric KIC and spectroscopic APOKASC metallicity scales, with increased dispersion in KIC metallicities as the absolute metal abundance decreases, and offsets in T eff and log g consistent with those derived in the literature. We present mean fitting relations between APOKASC and KIC observables and discuss future prospects, strengths, and limitations of the catalog data.

KW - catalogs

KW - stars: abundances

KW - stars: fundamental parameters

KW - stars: oscillations (including pulsations)

KW - surveys

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DO - 10.1088/0067-0049/215/2/19

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SN - 0067-0049

VL - 215

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

IS - 2

M1 - 19

ER -

The APOKASC catalog: An asteroseismic and spectroscopic joint survey of targets in the Kepler fields

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APOKASC catalog of Kepler red giants

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The APOKASC catalog: An asteroseismic and spectroscopic joint survey of targets in the Kepler fields

Abstract

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ASJC Scopus subject areas

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APOKASC catalog of Kepler red giants

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