A Planetary Companion to the Intermediate-Mass Giant HD 100655
Publications of the Astronomical Society of Japan Volume 64 Issue 2
Page 341-348
published_at 2012
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| File | |
| Title ( eng ) |
A Planetary Companion to the Intermediate-Mass Giant HD 100655
|
| Creator |
Omiya Masashi
Han Inwoo
Izumiura Hideyuki
Lee Byeong-Cheol
Sato Bun'ei
Kim Kang-Min
Yoon Tae Seong
Kambe Eiji
Masuda Seiji
Toyota Eri
Urakawa Seitaro
Takada-Hidai Masahide
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| Source Title |
Publications of the Astronomical Society of Japan
|
| Volume | 64 |
| Issue | 2 |
| Start Page | 341 |
| End Page | 348 |
| Abstract |
A precise radial-velocity survey conducted by a Korean-Japanese planet search program revealed a planetary companion around the intermediate-mass clump giant HD 100655. The radial velocity of the star exhibits a periodic Keplerian variation with a period, semi-amplitude, and eccentricity of 157.57 d, 35.2 m s(-1), and 0.085, respectively. Adopting an estimated stellar mass of 2.4 M-circle dot, we confirmed the presence of a planetary companion with a semi-major axis of 0.76 AU and a minimum mass of 1.7 M-J. The planet is the lowest-mass planet yet discovered around clump giants with masses greater than 1.9 M-circle dot.
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| Keywords |
stars: individual (HD 100655)
stars: planetary systems
techniques: radial velocities
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| NDC |
Astronomy. Space sciences [ 440 ]
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| Language |
eng
|
| Resource Type | journal article |
| Publisher |
Astronomical Society of Japan
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| Date of Issued | 2012 |
| Rights |
Copyright (c) 2012 The Astronomical Society of Japan
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0004-6264
[NCID] AA00795296
[arXiv] arXiv:1111.3746
[URI] http://pasj.asj.or.jp/
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