J/A+A/618/A103 Gl617A and Gl96 radial velocity curves (Hobson+, 2018)
The SOPHIE search for northern extrasolar planets.
XIII. Two planets around M-dwarfs Gl617A and Gl96.
Hobson M.J., Diaz R.F., Delfosse X., Astudillo-Defru N., Boisse I.,
Bouchy F., Bonfils X., Forveille T., Hara N., Arnold L., Borgniet S.,
Bourrier V., Brugger B., Cabrera N., Courcol B., Dalal S., Deleuil M.,
Demangeon O., Dumusque X., Ehrenreich D., Hebrard G., Kiefer F., Lopez T.,
Mignon L., Montagnier G., O.Mousis, Moutou C., Pepe F., Rey J., Santerne A.,
Santos N., Stalport M., Segransan D., Udry S., Wilson P.A
<Astron. Astrophys. 618, A103 (2018)>
=2018A&A...618A.103H 2018A&A...618A.103H (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Exoplanets ; Radial velocities
Keywords: techniques: radial velocities - planetary systems -
stars: late-type - stars: individual: Gl617A - stars: individual: Gl96
Abstract:
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 73.9d with a minimum mass of 19.66 earth masses.
Gl96b 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 86.7d with a minimum mass of
31.29 earth masses. Both Gl96 b and Gl617Ab are potentially within the
habitable zone, though the high eccentricity of Gl96 b may take it too
close to the star at periapsis.
Description:
Gl96 and Gl617A were observed with the SOPHIE spectrograph on the
1.93m telescope at the Observatoire de Haute-Provence (CNRS), France.
The tables provide the epoch of the observations, radial
velocities,and uncertainties on the radial velocities. The data was
gathered between 2011 and 2017.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 114 2 Stellar parameters
tablea1.dat 26 72 Gl96 radial velocity data
tablea2.dat 26 154 Gl617A radial velocity data
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 A6 --- Name Star name
8- 9 A2 --- SpType MK spectral Type from Gaidos et al.
(2014, Cat. J/MNRAS/443/2561)
11- 15 F5.3 mag Vmag V magnitude from Zacharias et al.
(2012, Cat. I/322)
17- 21 F5.3 mag B-V B-V colour index from Zacharias et al.
(2012, Cat. I/322)
23- 27 F5.3 mag V-K V-K colour index (1)
29- 32 F4.2 Msun Mass Mass from Delfosse et al.
(2000A&A...364..217D 2000A&A...364..217D)
34- 37 F4.2 Msun e_Mass rms uncertainty on Mass
39- 43 F5.2 mas plx Parallax
45- 48 F4.2 mas e_plx rms uncertainty on plx
49 A1 --- r_plx [ef] Parallax reference (2)
51- 55 F5.2 [-] log(R'HK) R'HK index
57- 60 F4.2 [-] e_log(R'HK) rms uncertainty on R'HK index
62- 65 F4.1 d Prot Rotational period
67- 69 F3.1 d e_Prot rms uncertainty on Prot
71- 74 I4 K Teff Effective temperature
76- 77 I2 K e_Teff rms uncertainty on Teff
78 A1 --- r_Teff Effective temperature reference (2)
80- 85 F6.4 Lsun L* Stellar luminosity from Mann et al.
(2015, Cat. J/ApJ/804/64)
87- 92 F6.4 Lsun e_L* rms uncertainty on L*
94- 97 F4.2 [-] [Fe/H] Metallicity from Mann et al.
(2015, Cat. J/ApJ/804/64)
99-102 F4.2 [-] e_[Fe/H] rms uncertainty on [Fe/H]
104-114 A11 --- FileName Name of the file with velocity data
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Note (1): V: Zacharias et al. (2012, Cat. I/322), K: Cutri et al. (2003, II/246)
Note (2): References as follows:
e = Gaia Collaboration et al., 2016, Cat. I/337
f = van Leeuwen, 2007, Cat. I/311
g = Gaidos & Mann, 2014, Cat. J/ApJ/791/54
h = Mann et al., 2015, Cat. J/ApJ/804/64
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Byte-by-byte Description of file: tablea1.dat tablea2.dat
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Bytes Format Units Label Explanations
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1- 10 F10.4 d BJD Barycentric Julian Date (BJD-2400000)
12- 19 F8.4 km/s RV Radial Velocity
21- 26 F6.4 km/s e_RV Radial Velocity Error
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Acknowledgements:
Melissa Hobson, melissa.hobson(at)lam.fr
(End) Melissa Hobson [LAM], Patricia Vannier [CDS] 03-Aug-2018