A Planetary Companion to the G-Type Giant Star HD 104985
نویسندگان
چکیده
منابع مشابه
The Spectroscopic Orbit of the Planetary Companion Transiting HD 209458.
We report a spectroscopic orbit with period P=3.52433+/-0.00027 days for the planetary companion that transits the solar-type star HD 209458. For the metallicity, mass, and radius of the star, we derive [Fe/H&sqbr0;=0.00+/-0.02, M*=1.1+/-0.1 M middle dot in circle, and R*=1.2+/-0.1 R middle dot in circle. This is based on a new analysis of the iron lines in our HIRES template spectrum and also ...
متن کاملDetection of a transit by the planetary companion of HD 80606 Stephen
We report the detection of a transit egress by the ∼ 3.9-Jupiter-mass planet HD 80606b, an object in a highly-eccentric orbit (e ∼ 0.93) about its parent star of approximately solar type. The astrophysical reality of the signal of variability in HD 80606 is confirmed by observation with two independent telescope systems, and checks against several reference stars in the field. Differential phot...
متن کاملA Planetary Companion to Γ Cephei A
We report the detection of a planetary companion in orbit around the primary star of the binary system γ Cephei. High precision radial velocity measurements using 4 independent data sets spanning the time interval 1981–2002 reveal long-lived residual radial velocity variations (after subtracting the contribution due to the stellar companion) that are coherent in phase and amplitude with a perio...
متن کاملA Planetary Companion to 70 Virginis1
An extremely low mass companion to the solar-type star 70 Virginis is inferred from the observed periodic Doppler reflex motion of the primary during 8 yr. The minimummass (M2 sin i) of 70 Vir “B” is 6.6 Jovian masses (MJ), which falls in the mass range associated with “extrasolar giant planets” (0.3–15 MJ ). An orbital fit to the velocities yields a period P 5 116.6 days, an amplitude K 5 318 ...
متن کاملBayesian analysis of the radial velocities of HD 11506 reveals another planetary companion
Aims. We aim to demonstrate the efficiency of a Bayesian approach in analysing radial velocity data by reanalysing a set of radial velocity measurements. Methods. We present Bayesian analysis of a recently published set of radial velocity measurements known to contain the signal of one extrasolar planetary candidate, namely, HD 11506. The analysis is conducted using the Markov chain Monte Carlo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2003
ISSN: 0004-637X,1538-4357
DOI: 10.1086/379967