Physical Sciences and Mathematics Commons^™

Five Intermediate-Period Planets From The N2k Sample, Debra A. Fischer, Steve Vogt, Geoffrey W. Marcy, R. Paul Butler, Bun'ei Sato, Gregory W. Henry, Sarah E. Robinson, Gregory Laughlin, Shigeru Ida, Eri Toyota, Masashi Omiya, Peter Driscoll, Genya Takeda, Jason T. Wright, John A. Johnson

Information Systems and Engineering Management Research Publications

We report the detection of five Jovian-mass planets orbiting high-metallicity stars. Four of these stars were first observed as part of the N2K program, and exhibited low rms velocity scatter after three consecutive observations. However, follow-up observations over the last 3 years now reveal the presence of longer period planets with orbital periods ranging from 21 days to a few years. HD 11506 is a G0 V star with a planet of M sin i = 4.74 MJup in a 3.85 yr orbit. HD 17156 is a G0 V star with a 3.12 MJup planet in a 21.2 day orbit. …