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The California Planet Survey II. A Saturn-Mass Planet Orbiting the M Dwarf Gl649
John Asher Johnson, Andrew W. Howard, Geoffrey W. Marcy +6
We report precise Doppler measurements of the nearby (d = 10.34 pc) M dwarf Gl649 that reveal the presence of a planet with a minimum mass Msini = 0.328 Mjup in an eccentric (e = 0…
Two Exoplanets Discovered at Keck Observatory
J. A. Valenti, D. A. Fischer, G. W. Marcy +6
We present two exoplanets detected at Keck Observatory. HD 179079 is a G5 subgiant that hosts a hot Neptune planet with Msini = 27.5 M_earth in a 14.48 d, low-eccentricity orbit. T…
Five planets and an independent confirmation of HD 196885Ab from Lick Observatory
D. A. Fischer, P. Driscoll, H. Isaacson +9
We present time series Doppler data from Lick Observatory that reveal the presence of long-period planetary companions orbiting nearby stars. The typical eccentricity of these mass…
A Substellar Companion in a 1.3 yr Nearly-circular Orbit of HD 16760
Bunei Sato, Debra A. Fischer, Shigeru Ida +9
We report the detection of a substellar companion orbiting the G5 dwarf HD 16760 from the N2K sample. Precise Doppler measurements of the star from Subaru and Keck revealed a Keple…
Old, Rich, and Eccentric: Two Jovian Planets Orbiting Evolved Metal-Rich Stars
Kathryn M. G. Peek, John Asher Johnson, Debra A. Fischer +10
We present radial velocity measurements of two stars observed as part of the Lick Subgiants Planet Search and the Keck N2K survey. Variations in the radial velocities of both stars…
The NASA-UC Eta-Earth Program: I. A Super-Earth Orbiting HD 7924
Andrew W. Howard, John A. Johnson, Geoffrey W. Marcy +8
We report the discovery of the first low-mass planet to emerge from the NASA-UC Eta-Earth Program, a super-Earth orbiting the K0 dwarf HD 7924. Keplerian modeling of precise Dopple…