2018A&A...618A.103H

Query : 2018A&A...618A.103H

2018A&A...618A.103H - Astronomy and Astrophysics, volume 618A103-103 (2018/1-0)

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., MOUSIS O., MOUTOU C., PEPE F., REY J., SANTERNE A., SANTOS N., STALPORT M., SEGRANSAN D., UDRY S. and WILSON P.A.

Abstract (from CDS):

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. 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 86.7d 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.

Abstract Copyright: © ESO 2018

Journal keyword(s): techniques: radial velocities - planetary systems - stars: late-type - stars: individual: Gl617A - stars: individual: Gl96

VizieR on-line data: <Available at CDS (J/A+A/618/A103): table1.dat tablea1.dat tablea2.dat>

Simbad objects: 27

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Number of rows : 27
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 1326 PM* 00 18 22.8849799680 +44 01 22.637951588   9.61 8.14 7.3   M2V 602 0
2 NAME G 268-38b Pl 00 44 59.3309137511 -15 16 17.542839990           ~ 237 0
3 HD 9407 PM* 01 34 33.2647932084 +68 56 53.289515638   7.21   6.1   G6.5V 175 0
4 BD+47 612 PM* 02 22 14.6437562448 +47 52 48.104862600   10.85   9.104   M0V 176 0
5 BD+47 612b Pl 02 22 14.6437562448 +47 52 48.104862600           ~ 12 0
6 G 245-71 PM* 03 21 21.7806754349 +79 58 02.153242183       10.2   M2.0V 95 0
7 HD 22154 SB* 03 30 26.1158499792 -64 07 20.827782048   9.19 8.20     K0III/IV 10 0
8 BD+05 1668 PM* 07 27 24.4989685603 +05 13 32.841491057 12.558 11.443 9.872 8.699 7.161 M3.5V 477 0
9 NAME L 675-81c Pl 08 40 59.2057867166 -23 27 22.592748045           ~ 24 1
10 HD 89269 PM* 10 18 51.9477652368 +44 02 53.954220509   7.31   6.2   G4V 160 0
11 HD 95735 PM* 11 03 20.1948195942 +35 58 11.576182057 10.030 8.960 7.520 5.99 4.79 M2+V 795 0
12 K2-18b Pl 11 30 14.5177445592 +07 35 18.255348492           ~ 303 0
13 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 750 1
14 BD+11 2576 PM* 13 29 59.7858994351 +10 22 37.784532575 11.728 10.524 9.029 8.07 7.013 M1.0V 313 0
15 BD+46 1889 ** 13 39 24.1022767773 +46 11 11.363133111       9.800   M1.0V 106 0
16 G 239-25 PM* 14 42 21.5756362789 +66 03 20.844850251   12.43 10.708 10.383   M3V 89 0
17 BD-07 4003 BY* 15 19 26.8269387505 -07 43 20.189497466 13.403 11.76 10.560 9.461 8.911 M3V 717 2
18 HD 147379b Pl 16 16 42.7463475871 +67 14 19.831647336           ~ 26 0
19 HD 147379c Pl 16 16 42.7463475871 +67 14 19.831647336           ~ 1 0
20 HD 147379 PM* 16 16 42.7463475871 +67 14 19.831647336   10.01   8.730   M1-Ve 262 0
21 BD-12 4523d Pl 16 30 18.0583947383 -12 39 45.321217732           ~ 27 0
22 HD 156384C PM* 17 18 58.8272997802 -34 59 48.612673382 12.96 11.79 10.22 10.05 8.82 M1.5V 249 1
23 BD+18 3421 PM* 17 37 53.3468417549 +18 35 30.164096453 12.315 11.109 9.577 8.599 7.525 M1.5V 257 0
24 BD+43 2796 PM* 17 43 55.9629842863 +43 22 43.000025414   12.10 10.49 10.07   M2V 137 0
25 HD 229590 PM* 18 48 51.8715103064 +17 26 20.208693453 11.656 10.462 9.155 8.337 7.6 K7V 89 0
26 * sig Dra PM* 19 32 21.5902098601 +69 39 40.235805206 5.860 5.460 4.680 4.04 3.63 K0V 691 0
27 TRAPPIST-1e Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 384 0

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