PROPERTIES OF 42 SOLAR-TYPE KEPLER TARGETS FROM THE ASTEROSEISMIC MODELING PORTAL

Journal Article · Wed Oct 01 00:00:00 EDT 2014 · Astrophysical Journal, Supplement Series

DOI:https://doi.org/10.1088/0067-0049/214/2/27· OSTI ID:22340151

Metcalfe, T. S.; Mathur, S. ^[1]; Creevey, O. L. ^[2]; Doğan, G.; Christensen-Dalsgaard, J.; Karoff, C.; Trampedach, R. ^[3]; Xu, H. ^[4]; Bedding, T. R.; Benomar, O. ^[5]; Chaplin, W. J.; Campante, T. L.; Davies, G. R. ^[6]; Brown, B. P. ^[7]; Buzasi, D. L. ^[8]; Çelik, Z. ^[9]; Cunha, M. S. ^[10]; Deheuvels, S. ^[11]; Derekas, A. ^[12]; Mauro, M. P. Di ^[13] ; others, and

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1. Space Science Institute, 4750 Walnut Street Suite 205, Boulder, CO 80301 (United States)
2. Institut d'Astrophysique Spatiale, Université Paris XI, UMR 8617, CNRS, Batiment 121, F-91405 Orsay Cedex (France)
3. Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C (Denmark)
4. Computational and Information Systems Laboratory, NCAR, P.O. Box 3000, Boulder, CO 80307 (United States)
5. Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, NSW 2006 (Australia)
6. School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT (United Kingdom)
7. Department of Astronomy and Center for Magnetic Self Organization in Laboratory and Astrophysical Plasmas, University of Wisconsin, Madison, WI 53706 (United States)
8. Department of Chemistry and Physics, Florida Gulf Coast University, Fort Myers, FL 33965 (United States)
9. Ege University, Department of Astronomy and Space Sciences, Bornova, 35100, Izmir (Turkey)
10. Centro de Astrofísica e Faculdade de Ciências, Universidade do Porto, Rua das Estrelas, 4150-762, Porto (Portugal)
11. Université de Toulouse, UPS-OMP, IRAP, Toulouse (France)
12. Konkoly Observatory, MTA CSFK, H-1121 Budapest, Konkoly Thege M. út 15-17 (Hungary)
13. INAF-IAPS Istituto di Astrofisica e Planetologia Spaziali, Via del Fosso del Cavaliere 100, I-00133 Roma (Italy)

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.

• OSTI ID: 22340151
• Journal Information: Astrophysical Journal, Supplement Series, Vol. 214, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ACCURACY
GIANT STARS
MASS
OSCILLATIONS
SCALING
SIMULATION
SPECTROSCOPY
STAR EVOLUTION