Substellar Companions to Evolved Intermediate-Mass Stars: HD 145457 and HD 180314

@article{Sato2010SubstellarCT,
  title={Substellar Companions to Evolved Intermediate-Mass Stars: HD 145457 and HD 180314},
  author={Bun’ei Sato and Masashi Omiya and Yujuan Liu and Hiroki Harakawa and Hideyuki Izumiura and Eiji Kambe and Eri Toyota and Daisuke Murata and Byeong‐Cheol Lee and Seiji Masuda and Yoichi Takeda and Michitoshi Yoshida and Yoichi Itoh and Hiroyasu Ando and Eiichiro Kokubo and Shigeru Ida and Gang Zhao and Inwoo Han},
  journal={Publications of the Astronomical Society of Japan},
  year={2010},
  volume={62},
  pages={1063-1069}
}
  • B. Sato, M. Omiya, +15 authors I. Han
  • Published 17 May 2010
  • Physics
  • Publications of the Astronomical Society of Japan
We report on the detection of two substellar companions orbiting around evolved intermediate-mass stars by precise Doppler measurements at Subaru Telescope and Okayama Astrophysical Observatory. HD 145457 is a K0 giant with a mass of 1.9 Mˇ, and has a planet of minimum mass, m2 sin i = 2.9 MJ, orbiting with a period of P = 176 d and eccentricity of e = 0:11. HD 180314 is also a K0 giant with 2.6Mˇ, and hosts a substellar companion of m2 sin i = 22 MJ, which falls in the brown-dwarf mass regime… 

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