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The Discovery of HD 37605c and a Dispositive Null Detection of Transits of HD 37605b
Sharon Xuesong Wang, Jason T. Wright, William Cochran +15
We report the radial-velocity discovery of a second planetary mass companion to the K0 V star HD 37605, which was already known to host an eccentric, P~55 days Jovian planet, HD 37…
The TRENDS High-Contrast Imaging Survey. I. Three Benchmark M-dwarfs Orbiting Solar-type Stars
Justin R. Crepp, John Asher Johnson, Andrew W. Howard +8
We present initial results from a new high-contrast imaging program dedicated to stars that exhibit long-term Doppler radial velocity accelerations (or "trends"). The goal of the T…
The TRENDS High-Contrast Imaging Survey. II. Direct Detection of the HD 8375 Tertiary
Justin R. Crepp, John Asher Johnson, Andrew W. Howard +6
We present the direct imaging detection of a faint tertiary companion to the single-lined spectroscopic binary HD 8375 AB. Initially noticed as an 53 m/s/yr Doppler acceleration by…
Kepler-47: A Transiting Circumbinary Multi-Planet System
Jerome A. Orosz, William F. Welsh, Joshua A. Carter +36
We report the detection of Kepler-47, a system consisting of two planets orbiting around an eclipsing pair of stars. The inner and outer planets have radii 3.0 and 4.6 times that o…
Precise Doppler Monitoring of Barnard's Star
Jieun Choi, Chris McCarthy, Geoffrey W. Marcy +5
We present 248 precise Doppler measurements of Barnard's Star (Gl 699), the second nearest star system to Earth, obtained from Lick and Keck Observatories during 25 years between 1…
Precise Radial Velocities of 2046 Nearby FGKM Stars and 131 Standards
C. Chubak, G. Marcy, D. A. Fischer +4
We present radial velocities with an accuracy of 0.1 km/s for 2046 stars of spectral type F,G,K, and M, based on 29000 spectra taken with the Keck I telescope. We also present 131…