TESS 发现 $\pi$ 绘架座系统中的一颗凌星超级地球
地球与行星天体物理
2018-12-12 v2
摘要
我们报告利用凌星系外行星巡天卫星（TESS）数据在 绘架座（HD 39091）周围探测到一颗凌星行星。该太阳型宿主星异常明亮（V=5.7），且已知其拥有一颗处于高偏心率、5.7 年轨道上的类木行星。新发现的行星大小为 ，轨道周期为 6.27 天。来自 HARPS 和 AAT/UCLES 档案的视向速度数据也显示出 6.27 天周期，确认了该行星的存在并得出质量测定值为 。该恒星的邻近性与亮度将有助于进一步研究，如大气光谱学、星震学、Rossiter–McLaughlin 效应、天体测量和直接成像。
引用
@article{arxiv.1809.05967,
title = {TESS Discovery of a Transiting Super-Earth in the $\pi$ Mensae System},
author = {Chelsea X. Huang and Jennifer Burt and Andrew Vanderburg and Maximilian N. Günther and Avi Shporer and Jason A. Dittmann and Joshua N. Winn and Rob Wittenmyer and Lizhou Sha and Stephen R. Kane and George R. Ricker and Roland K. Vanderspek and David W. Latham and Sara Seager and Jon M. Jenkins and Douglas A. Caldwell and Karen A. Collins and Natalia Guerrero and Jeffrey C. Smith and Samuel N. Quinn and Stéphane Udry and Francesco Pepe and François Bouchy and Damien Ségransan and Christophe Lovis and David Ehrenreich and Maxime Marmier and Michel Mayor and Bill Wohler and Kari Haworth and Edward H. Morgan and Michael Fausnaugh and David R. Ciardi and Jessie Christiansen and David Charbonneau and Diana Dragomir and Drake Deming and Ana Glidden and Alan M. Levine and P. R. McCullough and Liang Yu and Norio Narita and Tam Nguyen and Tim Morton and Joshua Pepper and András Pál and Joseph E. Rodriguez and the TESS team},
journal= {arXiv preprint arXiv:1809.05967},
year = {2018}
}
备注
Accepted for publication ApJ Letters. This letter makes use of the TESS Alert data, which is currently in a beta test phase. The discovery light curve is included in a table inside the arxiv submission