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Astrophysics and Astronomy Commons

Open Access. Powered by Scholars. Published by Universities.®

Tennessee State University

2003

HD 128311

Articles 1 - 1 of 1

Full-Text Articles in Astrophysics and Astronomy

Seven New Keck Planets Orbiting G And K Dwarfs, R. Paul Butler, Geoffrey W. Marcy, Steve S. Vogt, Debra A. Fischer, Gregory W. Henry, Gregory Laughlin, Jason Wright Jan 2003

Seven New Keck Planets Orbiting G And K Dwarfs, R. Paul Butler, Geoffrey W. Marcy, Steve S. Vogt, Debra A. Fischer, Gregory W. Henry, Gregory Laughlin, Jason Wright

Information Systems and Engineering Management Research Publications

Planetary mass companions orbiting seven nearby G and K dwarfs have been found from the Keck Precision Doppler Survey. A "51 Peg-like" planet orbiting HD 49674 has the smallest mass yet found, M sin i = 0.12 MJ. This system does not transit. A double-planet system orbits HD 37124, with periods of 153 days and 6 yr and minimum masses of 0.91 and 1.70 MJ. Single companions with moderate eccentricity have been found orbiting HD 108874, HD 72659, HD 114729, and HD 145675 with orbital periods ranging from 1.09 to 5.98 yr, yielding minimum masses ranging …