GAPS 计划之 HARPS-N@TNG VI：TrES-4b 的奇特案例
地球与行星天体物理
2015-06-23 v1
摘要
我们基于高精度的 HARPS-N 径向速度测量和新的测光光变曲线，重新审视了 TrES-4 系统的参数。结合光谱和测光分析，我们确定了一个振幅为 m s 的光谱轨道。推导出的 TrES-4b 质量为 ，显著低于此前报道的数值。结合我们分析推断出的较大半径（），TrES-4b 成为已知密度第二低的凌日热木星。我们在高度膨胀的凌日巨行星这一奇特类别的背景下，讨论了几种情景以解释 TrES-4b 质量令人困惑的差异。
引用
@article{arxiv.1501.06403,
title = {The GAPS Programme with HARPS-N@TNG VI: The Curious Case of TrES-4b},
author = {A. Sozzetti and A. S. Bonomo and K. Biazzo and L. Mancini and M. Damasso and S. Desidera and R. Gratton and A. F. Lanza and E. Poretti and M. Rainer and L. Malavolta and L. Affer and M. Barbieri and L. R. Bedin and C. Boccato and M. Bonavita and F. Borsa and S. Ciceri and R. U. Claudi and D. Gandolfi and P. Giacobbe and T. Henning and C. Knapic and D. W. Latham and G. Lodato and A. Maggio and J. Maldonado and F. Marzari and A. F. Martinez Fiorenzano and G. Micela and E. Molinari and C. Mordasini and V. Nascimbeni and I. Pagano and M. Pedani and F. Pepe and G. Piotto and N. Santos and G. Scandariato and E. Shkolnik and J. Southworth},
journal= {arXiv preprint arXiv:1501.06403},
year = {2015}
}
备注
5 pages, 4 figures, Letter accepted for publication in Astronomy and Astrophysics