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Full-Text Articles in Physical Sciences and Mathematics
Two Exoplanets Discovered At Keck Observatory, Jeff A. Valenti, Debra A. Fischer, Geoffrey W. Marcy, John Asher Johnson, Gregory W. Henry, Jason T. Wright, Andrew W. Howard, Matthew J. Giguere, Howard Isaacson
Two Exoplanets Discovered At Keck Observatory, Jeff A. Valenti, Debra A. Fischer, Geoffrey W. Marcy, John Asher Johnson, Gregory W. Henry, Jason T. Wright, Andrew W. Howard, Matthew J. Giguere, Howard Isaacson
Information Systems and Engineering Management Research Publications
We present two exoplanets detected at Keck Observatory. HD 179079 is a G5 subgiant that hosts a hot Neptune planet with M sin i = 27.5 M⊕ in a 14.48 days, low-eccentricity orbit. The stellar reflex velocity induced by this planet has a semiamplitude of K = 6.6 m s−1. HD 73534 is a G5 subgiant with a Jupiter-like planet of M sin i = 1.1 MJup and K = 16 m s−1 in a nearly circular 4.85 yr orbit. Both stars are chromospherically inactive and metal-rich. We discuss a known, classical bias in measuring eccentricities for orbits with velocity …