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Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Planet around Gliese 96 (with updated Gliese 617 A system parameters) 28th June 2018, 8:32 pm | |
| The SOPHIE search for northern extrasolar planets XIII. Two planets around M-dwarfs Gl617A and Gl96 https://arxiv.org/abs/1806.10958 - Quote :
- We report the detection of two exoplanets and a further tentative candidate around the M-dwarf stars Gl96 and Gl617A, based on radial velocity measurements obtained with the SOPHIE spectrograph at the Observatoire de Haute-Provence. Both stars were observed in the context of the SOPHIE exoplanet consortium's dedicated M-dwarf subprogramme, which aims to detect exoplanets around nearby M-dwarf stars through a systematic survey. For Gl96, we present the discovery of a new exoplanet at 73.9 d with a minimum mass of 19.66 earth masses. Gl96 b has an eccentricity of 0.44, placing it among the most eccentric planets orbiting M stars. For Gl617A we independently confirm a recently reported exoplanet at 86.7 d with a minimum mass of 31.29 earth masses. Both Gl96 b and Gl617A b are potentially within the habitable zone, though Gl96 b's high eccentricity may take it too close to the star at periapsis.
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