Two Long-period Giant Planets around Two Giant Stars: HD 112570 and HD 154391

Two Long-period Giant Planets around Two Giant Stars: HD 112570 and HD 154391

We present the discoveries of two giant plants orbiting the red-giant-branch star HD 112570 and the red-clump star HD 154391, based on the radial-velocity (RV) measurements from the Xinglong station and Okayama Astrophysical Observatory. Spectroscopic and asteroseismic analyses suggest that HD 11257...

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Bibliographic Details
Main Authors: Guang-Yao Xiao, Huan-Yu Teng, Jianzhao Zhou, Bun’ei Sato, Yu-Juan Liu, Shaolan Bi, Takuya Takarada, Masayuki Kuzuhara, Marc Hon, Liang Wang, Masashi Omiya, Hiroki Harakawa, Fei Zhao, Gang Zhao, Eiji Kambe, Hideyuki Izumiura, Hiroyasu Ando, Kunio Noguchi, Wei Wang, Meng Zhai, Nan Song, Chengqun Yang, Tanda Li, Timothy D. Brandt, Michitoshi Yoshida, Yoichi Itoh, Eiichiro Kokubo
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astronomical Journal
Subjects:
Exoplanet astronomy
Evolved stars
Radial velocity
Planet formation
Online Access:https://doi.org/10.3847/1538-3881/ad11de

Internet

https://doi.org/10.3847/1538-3881/ad11de

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