2010A&A...511A..45S


Query : 2010A&A...511A..45S

2010A&A...511A..45S - Astronomy and Astrophysics, volume 511, A45-45 (2010/2-2)

The CORALIE survey for southern extrasolar planets. XVI. Discovery of a planetary system around HD 147018 and of two long period and massive planets orbiting HD 171238 and HD 204313.

SEGRANSAN D., UDRY S., MAYOR M., NAEF D., PEPE F., QUELOZ D., SANTOS N.C., DEMORY B.-O., FIGUEIRA P., GILLON M., MARMIER M., MEGEVAND D., SOSNOWSKA D., TAMUZ O. and TRIAUD A.H.M.J.

Abstract (from CDS):

We report the detection of a double planetary system around HD147018 as well as the discovery of two long period and massive planets orbiting HD171238 and HD204313. Those discoveries were made with the CORALIE Echelle spectrograph mounted on the 1.2-m Euler Swiss telescope located at La Silla Observatory, Chile. The planetary system orbiting the nearby G9 dwarf HD147018 is composed of an eccentric inner planet (e=0.47) with twice the mass of Jupiter (2.1MJup) and with an orbital period of 44.24 days. The outer planet is even more massive (6.6MJup) with a slightly eccentric orbit (e=0.13) and a period of 1008 days. The planet orbiting HD171238 has a minimum mass of 2.6MJup, a period of 1523 days and an eccentricity of 0.40. It orbits a G8 dwarfs at 2.5AU. The last planet, HD204313 b, is a 4.0MJup-planet with a period of 5.3 years and has a low eccentricity (e=0.13). It orbits a G5 dwarfs at 3.1AU. The three parent stars are metal rich, which further strengthens the case that massive planets tend to form around metal rich stars.

Abstract Copyright:

Journal keyword(s): planetary systems - binaries: visual - techniques: radial velocities - stars: individual: HD147018 - stars: individual: HD171238 - stars: individual: HD204313

VizieR on-line data: <Available at CDS (J/A+A/511/A45): table1.dat table2.dat table3.dat>

Simbad objects: 10

goto Full paper

goto View the references in ADS

Number of rows : 10
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 HD 33636b * 05 11 46.4490 +04 24 12.742           M6V 44 1
2 HD 33636 Pe* 05 11 46.4494089528 +04 24 12.742146936   7.64   6.6   G0V_CH-0.3 176 1
3 HD 140718 ** 15 45 41.9 -14 42 51   10.1 9.7     F3V 3 0
4 HD 147018b Pl 16 23 00.1470204030 -61 41 19.562888349           ~ 15 1
5 HD 147018c Pl 16 23 00.1470204030 -61 41 19.562888349           ~ 11 1
6 HD 147018 PM* 16 23 00.1478804220 -61 41 19.559913914   9.07 8.30     G8/K0V 60 1
7 HD 171238 PM* 18 34 43.6759102128 -28 04 20.327373264   9.41 8.65     G8V 56 1
8 HD 171238b Pl 18 34 43.6759690035 -28 04 20.334510860           ~ 17 1
9 HD 204313b Pl 21 28 12.2060697389 -21 43 34.516646513           ~ 17 1
10 HD 204313 PM* 21 28 12.2060861256 -21 43 34.518205128   8.696 8.02 7.76   G5V 102 2

To bookmark this query, right click on this link: simbad:objects in 2010A&A...511A..45S and select 'bookmark this link' or equivalent in the popup menu


2022.09.27-02:37:29

© Université de Strasbourg/CNRS

    • Contact