WASP-5b:一颗凌越南半球 12 等恒星的致密极热木星
天体物理学
2009-11-13 v2
摘要
我们报告了 WASP-5b 的发现,这是一颗围绕南半球一颗 12 等 G 型恒星运行的木星质量行星。1.6 天的轨道周期将 WASP-5b 归类为极热木星(very-hot Jupiters),并导致其预测平衡温度为 1750 K。WASP-5b 是已知木星质量行星中密度最大的,其密度是受到类似恒星辐射的 TrES-4 的七倍,是拥有类似轨道周期的 WASP-4b 的三倍。我们展示了 WASP-5(= USNO-B1 0487-0799749)的凌星光度测量和径向速度测量,从中推导出该行星的质量、半径和密度:, 和 。轨道周期为 d,凌星中心历元为 。
引用
@article{arxiv.0801.1685,
title = {WASP-5b: a dense, very-hot Jupiter transiting a 12th-mag Southern-hemisphere star},
author = {D. R. Anderson and M. Gillon and C. Hellier and P. F. L. Maxted and F. Pepe and D. Queloz and D. M. Wilson and A. Collier Cameron and B. Smalley and T. A. Lister and S. J. Bentley and A. Blecha and D. J. Christian and B. Enoch and L. Hebb and K. Horne and J. Irwin and Y. C. Joshi and S. R. Kane and M. Marmier and M. Mayor and N. R. Parley and D. L. Pollacco and F. Pont and R. Ryans and D. Ségransan and I. Skillen and R. A. Street and S. Udry and R. G. West and P. J. Wheatley},
journal= {arXiv preprint arXiv:0801.1685},
year = {2009}
}
备注
4 pages, 4 figures, 4 tables, submitted to MNRAS Letters. Corrected vsini value and therefore age estimate. Added reference. Corrected error bars in Fig 4. Changed some wording