文章基本信息

标题：Retired A Stars and Their Companions. VIII. 15 New Planetary Signals around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts
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作者：Jacob K. Luhn ; Fabienne A. Bastien ; Jason T. Wright 等
期刊名称：The Astronomical journal
印刷版ISSN：0004-6256
电子版ISSN：1538-3881
出版年度：2019
卷号：157
期号：4
页码：1-22
DOI：10.3847/1538-3881/aaf5d0
语种：English
出版社：American Institute of Physics
摘要：We present the discovery of seven new planets and eight planet candidates around subgiant stars, as additions to the known sample of planets around “retired A stars.” Among these are the possible first three-planet systems around subgiant stars, HD 163607 and HD 4917. Additionally, we present calculations of possible transit times, durations, depths, and probabilities for all known planets around subgiant ( g 3 log 4 < < ) stars, focused on possible transits during the TESS mission. While most have transit probabilities of 1%–2%, we find that there are three planets with transit probabilities >9%.
关键词：planets and satellites: detection;planets and satellites: fundamental parameters;techniques: radial velocities