J/A+A/388/632 Radial-velocity of HD 108147 and HD 168746 (Pepe+, 2002)
The CORALIE survey for southern extra-solar planets.
VII. Two short-period Saturnian companions to HD 108147 and HD 168746.
Pepe F., Mayor M., Galland F., Naef D., Queloz D., Santos N.C., Udry S.,
Burnet M.
<Astron. Astrophys. 388, 632 (2002)>
=2002A&A...388..632P 2002A&A...388..632P (SIMBAD/NED BibCode)
ADC_Keywords: Radial velocities
Keywords: techniques: radial velocities - stars: individual: HD 108147 -
stars: individual: HD 168746 - stars: planetary systems
Abstract:
We present the discovery of two Saturn-mass companions to HD 108147
and HD 168746. Both belong to the lightest ever discovered planets.
The minimum mass of the companion to HD 168746 is of only 0.77 the
mass of Saturn and its orbital period is 6.4 days. The companion to
HD 108147 orbits its parent star in 10.9 days and its minimum mass is
1.34 that of Saturn. Its orbit is characterized by a high
eccentricity, e=0.50, indicating possibly the presence of a second
companion.
The detection of Saturn-mass planets by means of the Doppler technique
demands high radial-velocity measurement precision. The two new
candidates were discovered by means of the CORALIE echelle
spectrograph. The instrumental accuracy of CORALIE combined with the
simultaneous ThAr-reference technique has reached a level better than
3m/s. On many observed objects the precision is now limited by photon
noise.
Description:
Precise radial-velocity data of HD 108147 and HD 168746 taken with the
CORALIE instrument on the Leonard-Euler Swiss 1.2m Telescope at the
ESO La Silla Observatory. Julian date, radial velocity and error are
given.
Objects:
----------------------------------------------------------
RA (2000) DE Designation(s)
----------------------------------------------------------
12 25 46.3 -64 01 20 HD 108147
18 21 49.8 -11 55 22 HD 168746
----------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
hd108147.dat 37 118 Radial-velocity data of HD 108147
hd168746.dat 37 154 Radial-velocity data of HD 168746
--------------------------------------------------------------------------------
See also:
J/A+A/356/590 : The CORALIE survey for extrasolar planets. II (Udry+, 2000)
J/A+A/375/205 : The CORALIE survey for extrasolar planets. V (Naef+ 2001)
J/A+A/379/999 : The CORALIE survey for extrasolar planets. VI (Santos+ 2001)
J/A+A/390/267 : The CORALIE survey for extrasolar planets. VIII (Udry+, 2002)
J/A+A/392/215 : The CORALIE survey for extrasolar planets. IX (Santos+ 2002)
J/A+A/406/373 : The CORALIE survey for extrasolar planets. XI (Santos+, 2003)
J/A+A/415/391 : The CORALIE survey for extrasolar planets. XII (Mayor+, 2004)
J/A+A/447/1159 : CORALIE survey for extrasolar planets. XIV (Eggenberger+ 2006)
J/A+A/480/L33 : The CORALIE survey for extrasolar planets. XV (Tamuz+, 2008)
J/A+A/375/L27 : HD80606b a planet on an extremely elongated orbit (Naef+ 2001)
J/A+A/410/1039 : Northern extra-solar planets ELODIE survey I (Perrier+ 2003)
J/A+A/410/1051 : Northern extra-solar planets ELODIE survey II (Naef+ 2003)
J/A+A/414/351 : Northern extra-solar planets ELODIE survey III (Naef+, 2004)
Byte-by-byte Description of file: hd108147.dat hd168746.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 F14.6 --- JD Julian date of the observation
17- 24 F8.4 km/s RV Radial velocity corrected for barycentric
earth motion
33- 37 F5.3 km/s e_RV Estimated photon-noise error
--------------------------------------------------------------------------------
Acknowledgements: Francesco Pepe
References:
Queloz et al., Paper I 2000A&A...354...99Q 2000A&A...354...99Q
Udry et al., Paper II 2000A&A...356..590U 2000A&A...356..590U, Cat. J/A+A/356/590
Santos et al., Paper III 2000A&A...356..599S 2000A&A...356..599S
Santos et al., Paper IV 2000A&A...361..265S 2000A&A...361..265S
Naef et al., Paper V 2001A&A...375..205N 2001A&A...375..205N, Cat. J/A+A/375/205
Santos et al., Paper VI 2001A&A...379..999S 2001A&A...379..999S, Cat. J/A+A/379/999
Udry et al., Paper VIII 2002A&A...390..267U 2002A&A...390..267U, Cat. J/A+A/390/267
Santos et al., Paper IX 2002A&A...392..215S 2002A&A...392..215S, Cat. J/A+A/392/215
Udry et al., Paper X 2003A&A...407..679U 2003A&A...407..679U
Santos et al., Paper XI 2003A&A...406..373S 2003A&A...406..373S, Cat. J/A+A/406/373
Mayor et al., Paper XII 2004A&A...415..391M 2004A&A...415..391M, Cat. J/A+A/415/391
Correia et al., Paper XIII 2005A&A...440..751C 2005A&A...440..751C
Eggenberger et al., Paper XIV 2006A&A...447.1159E 2006A&A...447.1159E, Cat. J/A+A/447/1159
Tamuz et al., Paper XV 2008A&A...480L..33T 2008A&A...480L..33T, Cat. J/A+A/480/L33
(End) Francesco Pepe [Geneva Observatory, Switzerland] 03-Dec-2002