DISCOVERY OF A RED GIANT WITH SOLAR-LIKE OSCILLATIONS IN AN ECLIPSING BINARY SYSTEM FROM KEPLER SPACE-BASED PHOTOMETRY
DISCOVERY OF A RED GIANT WITH SOLAR-LIKE OSCILLATIONS IN AN ECLIPSING BINARY SYSTEM FROM KEPLER SPACE-BASED PHOTOMETRY
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DOI：
10.1088/2041-8205/713/2/l187
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发表时间：
2010-01
期刊：
影响因子：
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通讯作者：
S. Hekker;J. Debosscher;D. Huber;M. Hidas;J. De Ridder;C. Aerts;D. Stello;T. Bedding;R. Gilliland;J. Christensen-Dalsgaard;T. Brown;H. Kjeldsen;W. Borucki;D. Koch;J. Jenkins;H. Van Winckel;P. Beck;J. Blomme;J. Southworth;A. Pigulski;W. Chaplin;Y. Elsworth;I. Stevens;S. Dreizler;D. Kurtz;C. Maceroni;D. Cardini;A. Derekas;M. Suran
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作者：
S. Hekker;J. Debosscher;D. Huber;M. Hidas;J. De Ridder;C. Aerts;D. Stello;T. Bedding;R. Gilliland;J. Christensen-Dalsgaard;T. Brown;H. Kjeldsen;W. Borucki;D. Koch;J. Jenkins;H. Van Winckel;P. Beck;J. Blomme;J. Southworth;A. Pigulski;W. Chaplin;Y. Elsworth;I. Stevens;S. Dreizler;D. Kurtz;C. Maceroni;D. Cardini;A. Derekas;M. Suran
双星系统中的振荡星是最有趣的恒星实验室之一，因为它们可以提供恒星参数和恒星内部结构的信息。在这里，我们提出了一个红巨星与太阳一样的振荡，在食双星与美国宇航局开普勒卫星观察。我们从光谱中计算了红巨星的恒星参数，从振荡中计算了星震的质量和半径。虽然到目前为止只观测到一次日食，但我们已经可以确定，这是一颗主序星F星星，其偏心轨道的半长轴大于0.5 Au，轨道周期大于75天。
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.