M2K: I. A Jupiter-Mass Planet Orbiting the M3V Star HIP 794311
Open Access
- 1 February 2010
- journal article
- Published by IOP Publishing in Publications of the Astronomical Society of the Pacific
- Vol. 122 (888) , 156-161
- https://doi.org/10.1086/651058
Abstract
Doppler observations from Keck Observatory reveal the presence of a planet with Msini of 2.1 Mjup orbiting the M3V star HIP79431. This is the sixth giant planet to be detected in Doppler surveys of M dwarfs and it is one of the most massive planets discovered around an M dwarf star. The planet has an orbital period of 111.7 days and an orbital eccentricity of 0.29. The host star is metal rich, with an estimated [Fe/H] = +0.4. This is the first planet to emerge from our new survey of 1600 M-to-K dwarf stars.Comment: 5 figureKeywords
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