HD 202772A b：TESS 发现的亮而轻度演化恒星所在视觉双星中的一颗凌星热木星
地球与行星天体物理
2019-01-23 v1
摘要
我们报告由凌星系外行星巡天卫星（TESS）任务发现的首颗热木星确认：HD 202772A b。凌星信号在 TESS 第 1 扇区数据中检出，并通过视向速度测量确认为行星起源。HD 202772A b 以 3.3 天周期绕一颗轻度演化恒星运行。该星视星等 V = 8.3，是已知宿主热木星中最亮者之一。基于 27 天 TESS 测光及来自 CHIRON 与 HARPS 光谱仪的视向速度数据，该行星质量为 1.008±0.074 M_J、半径为 1.562±0.053 R_J，是一颗膨胀气态巨行星。HD 202772A b 是绕快速演化恒星的凌星热木星的罕见例子，也是目前已知受辐射最强的热木星之一。
引用
@article{arxiv.1810.02341,
title = {HD 202772A B: A Transiting Hot Jupiter Around A Bright, Mildly Evolved Star In A Visual Binary Discovered By Tess},
author = {Songhu Wang and Matias Jones and Avi Shporer and Benjamin J. Fulton and Leonardo A. Paredes and Trifon Trifonov and Diana Kossakowski and Jason Eastman and Maximilian N. Gunther and Chelsea X. Huang and Sarah Millholland and Darryl Seligman and Debra Fischer and Rafael Brahm and Xian-Yu Wang and Bryndis Cruz and Hodari-Sadiki James and Brett Addison and Todd Henry and En-Si Liang and Allen B. Davis and Rene Tronsgaard and Keduse Worku and John Brewer and Martin Kurster and Charles A. Beichman and Allyson Bieryla and Timothy M. Brown and Jessie L. Christiansen and David R. Ciardi and Karen A. Collins and Gilbert A. Esquerdo and Andrew W. Howard and Howard Isaacson and David W. Latham and Tsevi Mazeh and Erik A. Petigura and Samuel N. Quinn and Sahar Shahaf and Robert J. Siverd and George R. Ricker and Roland Vanderspek and Sara Seager and Joshua N. Winn and Jon M. Jenkins and Patricia T. Boyd and Gabor Furesz and Christopher Henze and Alen M. Levine and Robert Morris and Martin Paegert and Keivan G. Stassun and Eric B. Ting and Michael Vezie and Gregory Laughlin},
journal= {arXiv preprint arXiv:1810.02341},
year = {2019}
}
备注
Submitted to AAS Journal