凌星行星Kepler-5b的发现
地球与行星天体物理
2015-05-14 v1
摘要
我们展示了13等星Kepler-5（KIC 8191672，有效温度=6300 K，表面重力加速度对数=4.1）的44天高占空比、超高精度测光数据，该星体呈现出深度为0.7%的周期性凌星现象。对凌星的详细建模与一颗轨道周期为3.548460±0.000032天、半径为1.431±0.050倍木星半径的行星伴星一致。利用凯克望远镜HIRES光谱仪在9个独立夜晚进行的后续径向速度测量表明，该行星的质量是木星的两倍以上，为2.114±0.057倍木星质量，平均密度为0.894±0.079克/立方厘米。
引用
@article{arxiv.1001.0913,
title = {Discovery of the Transiting Planet Kepler-5b},
author = {David G. Koch and William J. Borucki and Jason F. Rowe and Natalie M. Batalha and Timothy M. Brown and Douglas A. Caldwell and John Caldwell and William D. Cochran and Edna DeVore and Edward W. Dunham and Andrea K. Dupree and Thomas N. Gautier and John C. Geary and Ron L. Gilliland and Steve B. Howell and Jon M. Jenkins and David W. Latham and Jack J. Lissauer and Geoff W. Marcy and David Morrison and Jill Tarter},
journal= {arXiv preprint arXiv:1001.0913},
year = {2015}
}
备注
13 pages, 3 figures, submitted to the Astrophysical Journal Letters