Journal
ASTRONOMY & ASTROPHYSICS
Volume 474, Issue 2, Pages 647-651Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361:20078129
Keywords
stars : planetary systems; planetary systems : formation; techniques : radial velocity; stars : abundances
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In this paper we present the detection of a 1.8 M-Jup planet in a 538-day period trajectory orbiting the metal-poor star HD171028 ([Fe/H] = -0.49). This planet is the first to be discovered in the context of a HARPS program searching for planets around metal-poor stars. Interestingly, HD171028 is one of the least metal-poor stars in the sample. This discovery is placed in the context of the models of planet formation and evolution.
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