The HARPS search for southern extra-solar planets XII. A giant planet orbiting the metal-poor star HD171028
arXiv:0708.0954 · doi:10.1051/0004-6361:20078129
Abstract
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.
7 pages, 4 figures, accepted for publication in A&A