Properties of 42 solar-type Kepler targets from the asteroseismic modeling portal

T. S. Metcalfe, O. L. Creevey, G. Doʇan, S. Mathur, H. Xu, T. R. Bedding, W. J. Chaplin, J. Christensen-Dalsgaard, C. Karoff, R. Trampedach, O. Benomar, B. P. Brown, D. L. Buzasi, T. L. Campante, Z. Çelik, M. S. Cunha, G. R. Davies, S. Deheuvels, A. Derekas, M. P.Di MauroR. A. García, J. A. Guzik, R. Howe, K. B. Macgregor, A. Mazumdar, J. Montalbán, M. J.P.F.G. Monteiro, D. Salabert, A. Serenelli, D. Stello, M. Stęs̈licki, M. D. Suran, M. Yildiz, C. Aksoy, Y. Elsworth, M. Gruberbauer, D. B. Guenther, Y. Lebreton, K. Molaverdikhani, D. Pricopi, R. Simoniello, T. R. White

Research output: Contribution to journalArticle

Abstract

Recently the number of main-sequence and subgiant stars exhibiting solar-like oscillations that are resolved into individual mode frequencies has increased dramatically. While only a few such data sets were available for detailed modeling just a decade ago, the Kepler mission has produced suitable observations for hundreds of new targets. This rapid expansion in observational capacity has been accompanied by a shift in analysis and modeling strategies to yield uniform sets of derived stellar properties more quickly and easily. We use previously published asteroseismic and spectroscopic data sets to provide a uniform analysis of 42 solar-type Kepler targets from the Asteroseismic Modeling Portal. We find that fitting the individual frequencies typically doubles the precision of the asteroseismic radius, mass, and age compared to grid-based modeling of the global oscillation properties, and improves the precision of the radius and mass by about a factor of three over empirical scaling relations. We demonstrate the utility of the derived properties with several applications.

Original languageEnglish (US)
Article number27
JournalAstrophysical Journal, Supplement Series
Volume214
Issue number2
DOIs
StatePublished - Oct 1 2014

Keywords

  • methods: numerical
  • stars: evolution
  • stars: interiors
  • stars: oscillations

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Metcalfe, T. S., Creevey, O. L., Doʇan, G., Mathur, S., Xu, H., Bedding, T. R., Chaplin, W. J., Christensen-Dalsgaard, J., Karoff, C., Trampedach, R., Benomar, O., Brown, B. P., Buzasi, D. L., Campante, T. L., Çelik, Z., Cunha, M. S., Davies, G. R., Deheuvels, S., Derekas, A., ... White, T. R. (2014). Properties of 42 solar-type Kepler targets from the asteroseismic modeling portal. Astrophysical Journal, Supplement Series, 214(2), [27]. https://doi.org/10.1088/0067-0049/214/2/27