DISCOVERY OF A RED GIANT WITH SOLAR-LIKE OSCILLATIONS IN AN ECLIPSING BINARY SYSTEM FROM KEPLER SPACE-BASED PHOTOMETRY

Journal Article · Tue Apr 20 00:00:00 EDT 2010 · Astrophysical Journal Letters

DOI:https://doi.org/10.1088/2041-8205/713/2/L187; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)· OSTI ID:21305028

Hekker, S ^[1]; Debosscher, J; De Ridder, J; Aerts, C; Van Winckel, H; Beck, P G; Blomme, J ^[2]; Huber, D; Hidas, M G; Stello, D; Bedding, T R ^[3]; Gilliland, R L ^[4]; Christensen-Dalsgaard, J; Kjeldsen, H ^[5]; Brown, T M ^[6]; Borucki, W J; Koch, D ^[7]; Jenkins, J M ^[8]; Southworth, J ^[9]

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1. School of Physics and Astronomy, University of Birmingham, Edgbaston B15 2TT (United Kingdom)
2. Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven (Belgium)
3. Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, NSW 2006 (Australia)
4. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)
5. Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C (Denmark)
6. Las Cumbres Observatory Global Telescope, Goleta, CA 93117 (United States)
7. NASA Ames Research Center, MS 244-30, Moffet Field, CA 94035 (United States)
8. SETI Institute/NASA Ames Research Center, MS 244-30, Moffet Field, CA 94035 (United States)
9. Astrophysics Group, Keele University Newcastle-under-Lyme, ST5 5BG (United Kingdom)

Oscillating stars in binary systems are among the most interesting stellar laboratories, as these can provide information on the stellar parameters and stellar internal structures. Here we present a red giant with solar-like oscillations in an eclipsing binary observed with the NASA Kepler satellite. We compute stellar parameters of the red giant from spectra and the asteroseismic mass and radius from the oscillations. Although only one eclipse has been observed so far, we can already determine that the secondary is a main-sequence F star in an eccentric orbit with a semi-major axis larger than 0.5 AU and orbital period longer than 75 days.

• OSTI ID: 21305028
• Journal Information: Astrophysical Journal Letters, Vol. 713, Issue 2; Other Information: DOI: 10.1088/2041-8205/713/2/L187; Country of input: International Atomic Energy Agency (IAEA); ISSN 2041-8205
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ECLIPSE
OSCILLATIONS
PHOTOMETRY
SATELLITES
STARS