2010A&A...513A..69H


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.14CEST22:34:52

2010A&A...513A..69H - Astronomy and Astrophysics, volume 513, A69-69 (2010/4-1)

The SOPHIE search for northern extrasolar planets. II. A multiple planet system around HD 9446.

HEBRARD G., BONFILS X., SEGRANSAN D., MOUTOU C., DELFOSSE X., BOUCHY F., BOISSE I., ARNOLD L., DESORT M., DIAZ R.F., EGGENBERGER A., EHRENREICH D., FORVEILLE T., LAGRANGE A.-M., LOVIS C., PEPE F., PERRIER C., PONT F., QUELOZ D., SANTOS N.C., UDRY S. and VIDAL-MADJAR A.

Abstract (from CDS):

We report the discovery of a planetary system around HD 9446, performed from radial velocity measurements secured with the spectrograph SOPHIE at the 193-cm telescope of the Haute-Provence Observatory for more than two years. At least two planets orbit this G5V, active star: HD 9446b has a minimum mass of 0.7MJup and a slightly eccentric orbit with a period of 30 days, whereas HD 9446c has a minimum mass of 1.8MJup and a circular orbit with a period of 193 days. As for most of the known multiple planet systems, the HD 9446-system presents a hierarchical disposition with a massive outer planet and a lighter inner planet.

Abstract Copyright:

Journal keyword(s): planetary systems - techniques: radial velocities - stars: individual: HD 9446

VizieR on-line data: <Available at CDS (J/A+A/513/A69): table1.dat>

Simbad objects: 12

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Number of rows : 12

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 9446b Pl 01 33 20.1848210075 +29 15 54.538987330           ~ 9 1
2 HD 9446c Pl 01 33 20.1848210075 +29 15 54.538987330           ~ 7 1
3 HD 9446 PM* 01 33 20.1848210075 +29 15 54.538987330   9.03   8.0   G5V 50 1
4 * ups And b Pl 01 36 47.84216 +41 24 19.6443           ~ 248 1
5 BD+57 793b Pl 04 21 52.7044170433 +57 49 01.892074012           ~ 172 1
6 HD 69830 PM* 08 18 23.9469692487 -12 37 55.810202572   6.74 5.95     G8:V 464 2
7 HAT-P-13b Pl 08 39 31.8073600797 +47 21 07.275628863           ~ 87 1
8 HD 80606b Pl 09 22 37.5769478105 +50 36 13.434928660           ~ 274 1
9 BD-08 2823 PM* 10 00 47.7205821457 -09 31 00.042816900   10.94 9.874 9.801   K4:V 52 1
10 HD 155358 PM* 17 09 34.6179324422 +33 21 21.086408841       7.0   G0 133 1
11 HD 187123b Pl 19 46 58.1122608389 +34 25 10.279867125           ~ 74 1
12 HD 217107b Pl 22 58 15.5411942071 -02 23 43.387117210           ~ 82 1

    Equat.    Gal    SGal    Ecl

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2020.07.14-22:34:52

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