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The Keck Planet Search: Detectability and the Minimum Mass and Orbital Period Distribution of Extrasolar Planets
ABSTRACT. We analyze 8 years of precise radial velocity measurements from the Keck Planet Search, characterizing the detection threshold, selection effects, and completeness of the survey. We firstExpand
Chromospheric Ca II Emission in Nearby F, G, K, and M Stars*
We present chromospheric Ca II H and K activity measurements, rotation periods, and ages for ~1200 F, G, K, and M type main-sequence stars from ~18,000 archival spectra taken at Keck and LickExpand
A Neptune-Mass Planet Orbiting the Nearby M Dwarf GJ 436
We report precise Doppler measurements of GJ 436 (M2.5 V) obtained at Keck Observatory. The velocities reveal a planetary companion with orbital period of 2.644 days, eccentricity of 0.12 (consistentExpand
A New Planet around an M Dwarf: Revealing a Correlation between Exoplanets and Stellar Mass
We report precise Doppler measurements of GJ 317 (M3.5 V) that reveal the presence of a planet with a minimum mass M_P sin i = 1.2 M_(Jup) in an eccentric, 692.9 day orbit. GJ 317 is only the third MExpand
Retired A Stars and Their Companions: Exoplanets Orbiting Three Intermediate-Mass Subgiants
We report precision Doppler measurements of three intermediate-mass subgiants obtained at Lick and Keck Observatories. All three stars show variability in their radial velocities consistent withExpand
The Exoplanet Orbit Database
We present a database of well-determined orbital parameters of exoplanets, and their host stars’ properties. This database comprises spectroscopic orbital elements measured for 427 planets orbitingExpand
The N2K Consortium. II. A Transiting Hot Saturn around HD 149026 with a Large Dense Core
Doppler measurements from Subaru and Keck have revealed radial velocity variations in the V = 8.15, G0 IV star HD 149026 consistent with a Saturn-mass planet in a 2.8766 day orbit. PhotometricExpand
The Occurrence and Mass Distribution of Close-in Super-Earths, Neptunes, and Jupiters
The occurrence rate of close-in planets (with orbital periods less than 50 days), based on precise Doppler measurements of 166 Sun-like stars, is reported, indicating that theoretical models of planet formation predict a deficit of planets in the domain from 5 to 30 Earth masses and with orbital periods under 50 days are in fact well populated. Expand
A disintegrating minor planet transiting a white dwarf
Observations of a white dwarf being transited by at least one, and probably several, disintegrating planetesimals are reported, providing further evidence that the pollution of white dwarfs by heavy elements might originate from disrupted rocky bodies such as asteroids and minor planets. Expand
Five Planets Orbiting 55 Cancri
Wereport18yearsof Dopplershiftmeasurementsof anearbystar,55Cancri,thatexhibitsstrongevidenceforfive orbiting planets. The four previously reported planets are strongly confirmed here. Afifth planetExpand