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The HARPS search for southern extrasolar planets. XXIII. 8 planetary companions to low-activity solar-type stars

Abstract : In this paper, we present our HARPS radial-velocity data for eight low-activity solar-type stars belonging to the HARPS volume-limited sample: HD6718, HD8535, HD28254, HD290327, HD43197, HD44219, HD148156, and HD156411. Keplerian fits to these data reveal the presence of low-mass companions around these targets. With minimum masses ranging from 0.58 to 2.54 MJup, these companions are in the planetary mass domain. The orbital periods of these planets range from slightly less than one to almost seven years. The eight orbits presented in this paper exhibit a wide variety of eccentricities: from 0.08 to above 0.8.
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Dominique Naef, Michel Mayor, Gaspare Lo Curto, Francois Bouchy, Christophe Lovis, et al.. The HARPS search for southern extrasolar planets. XXIII. 8 planetary companions to low-activity solar-type stars. Astronomy and Astrophysics, EDP Sciences, 2010, 523, pp.A15. ⟨10.1051/0004-6361/200913616⟩. ⟨hal-00662790⟩

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