The SOPHIE search for northern extrasolar planets: XIII. Two planets around M-dwarfs Gl617A and Gl96

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 con...

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Publicado: 2018
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v618_n_p_Hobson
http://hdl.handle.net/20.500.12110/paper_00046361_v618_n_p_Hobson
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spelling paper:paper_00046361_v618_n_p_Hobson2023-06-08T14:28:25Z The SOPHIE search for northern extrasolar planets: XIII. Two planets around M-dwarfs Gl617A and Gl96 Planetary systems Stars: individual: Gl617A Stars: individual: Gl96 Stars: late-type Techniques: radial velocities Orbits Stars Dwarf stars Exo-planets Minimum mass Planetary system Radial velocity measurements Stars: individual Stars:late type Techniques: radial velocities Extrasolar planets 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, although the high eccentricity of Gl96 b may take it too close to the star at periapsis. © ESO 2018. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v618_n_p_Hobson http://hdl.handle.net/20.500.12110/paper_00046361_v618_n_p_Hobson
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Planetary systems
Stars: individual: Gl617A
Stars: individual: Gl96
Stars: late-type
Techniques: radial velocities
Orbits
Stars
Dwarf stars
Exo-planets
Minimum mass
Planetary system
Radial velocity measurements
Stars: individual
Stars:late type
Techniques: radial velocities
Extrasolar planets
spellingShingle Planetary systems
Stars: individual: Gl617A
Stars: individual: Gl96
Stars: late-type
Techniques: radial velocities
Orbits
Stars
Dwarf stars
Exo-planets
Minimum mass
Planetary system
Radial velocity measurements
Stars: individual
Stars:late type
Techniques: radial velocities
Extrasolar planets
The SOPHIE search for northern extrasolar planets: XIII. Two planets around M-dwarfs Gl617A and Gl96
topic_facet Planetary systems
Stars: individual: Gl617A
Stars: individual: Gl96
Stars: late-type
Techniques: radial velocities
Orbits
Stars
Dwarf stars
Exo-planets
Minimum mass
Planetary system
Radial velocity measurements
Stars: individual
Stars:late type
Techniques: radial velocities
Extrasolar planets
description 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, although the high eccentricity of Gl96 b may take it too close to the star at periapsis. © ESO 2018.
title The SOPHIE search for northern extrasolar planets: XIII. Two planets around M-dwarfs Gl617A and Gl96
title_short The SOPHIE search for northern extrasolar planets: XIII. Two planets around M-dwarfs Gl617A and Gl96
title_full The SOPHIE search for northern extrasolar planets: XIII. Two planets around M-dwarfs Gl617A and Gl96
title_fullStr The SOPHIE search for northern extrasolar planets: XIII. Two planets around M-dwarfs Gl617A and Gl96
title_full_unstemmed The SOPHIE search for northern extrasolar planets: XIII. Two planets around M-dwarfs Gl617A and Gl96
title_sort sophie search for northern extrasolar planets: xiii. two planets around m-dwarfs gl617a and gl96
publishDate 2018
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v618_n_p_Hobson
http://hdl.handle.net/20.500.12110/paper_00046361_v618_n_p_Hobson
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