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The stellar activity-rotation relationship and the evolution of stellar dynamos
Nicholas J. Wright, Jeremy J. Drake, Eric E. Mamajek +1
We present a sample of 824 solar and late-type stars with X-ray luminosities and rotation periods. This is used to study the relationship between rotation and stellar activity and…
A High Eccentricity Component in the Double Planet System Around HD 163607 and a Planet Around HD 164509
Matthew J. Giguere, Debra A. Fischer, Andrew W. Howard +7
We report the detection of three new exoplanets from Keck Observatory. HD 163607 is a metal-rich G5IV star with two planets. The inner planet has an observed orbital period of 75.2…
Detection of a Transiting Low-Density Super-Earth
Gregory W. Henry, Andrew W. Howard, Geoffrey W. Marcy +2
New APT photometric observations of HD 97658 by Henry during the current 2012 observing season have failed to confirm the shallow transits of HD 97658b reported below. Additional o…
Retired A Stars and Their Companions: Eighteen New Jovian Planets
John Asher Johnson, Christian Clanton, Andrew W. Howard +9
We report the detection of eighteen Jovian planets discovered as part of our Doppler survey of subgiant stars at Keck Observatory, with follow-up Doppler and photometric observatio…
Revised Orbit and Transit Exclusion for HD 114762b
Stephen R. Kane, Gregory W. Henry, Diana Dragomir +4
Transiting planets around bright stars have allowed the detailed follow-up and characterization of exoplanets, such as the study of exoplanetary atmospheres. The Transit Ephemeris…
A Volume-Limited Photometric Survey of 114 gamma Doradus Candidates
Gregory W. Henry, Francis C. Fekel, Stephen M. Henry
We have carried out a photometric survey of a complete, volume-limited sample of gamma Doradus candidates. The sample was extracted from the Hipparcos catalog and consists of 114 s…