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arXiv 1001.0913astro-ph.EP
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发现凌日行星Kepler-5 b

Discovery of the Transiting Planet Kepler-5b

David G. Koch, William J. Borucki, Jason F. Rowe, Natalie M. Batalha, Timothy M. Brown, Douglas A. Caldwell, John Caldwell, William D. Cochran, Edna DeVore, Edw… 展开作者

David G. Koch, William J. Borucki, Jason F. Rowe, Natalie M. Batalha, Timothy M. Brown, Douglas A. Caldwell, John Caldwell, William D. Cochran, Edna DeVore, Edward W. Dunham, Andrea K. Dupree, Thomas N. Gautier, John C. Geary, Ron L. Gilliland, Steve B. Howell, Jon M. Jenkins, David W. Latham, Jack J. Lissauer, Geoff W. Marcy, David Morrison, Jill Tarter

摘要:

我们提出了44天的高占空比,超精密测光的13等恒星开普勒-5(KIC 8191672,Teff=6300 K,logg=4.1),它表现出周期性的过渡与深度的0.7%。凌日的详细模型与轨道周期为3.548460+/-0.000032天,半径为1.431+/-0.050 Rj的行星伴星一致。凯克HIRES摄谱仪在9个不同夜晚的后续径向速度测量表明,这颗行星的质量是木星的两倍多,质量为2.114+/-0.057,平均密度为0.894+/-0.079 g/cm^3。

英文摘要:

We present 44 days of high duty cycle, ultra precise photometry of the 13th magnitude star Kepler-5 (KIC 8191672, Teff=6300 K, logg=4.1), which exhibits periodic transits with a depth of 0.7%. Detailed modeling of the transit is consistent with a planetary companion with an orbital period of 3.548460+/-0.000032 days and a radius of 1.431+/-0.050 Rj. Follow-up radial velocity measurements with the Keck HIRES spectrograph on 9 separate nights demonstrate that the planet is more than twice as massive as Jupiter with a mass of 2.114+/-0.057 and a mean density of 0.894+/-0.079 g/cm^3.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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