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ID 34746
file
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
subject
stars: individual (HD 100655)
stars: planetary systems
techniques: radial velocities
NDC
Astronomy. Space sciences
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.
journal title
Publications of the Astronomical Society of Japan
volume
Volume 64
issue
Issue 2
start page
341
end page
348
date of issued
2012
publisher
Astronomical Society of Japan
issn
0004-6264
ncid
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2012 The Astronomical Society of Japan
relation url
department
Hiroshima Astrophysical Science Center