J/A+A/447/1159 Radial velocities of HD 142022 (Eggenberger+, 2006)
The CORALIE survey for southern extrasolar planets.
XIV. HD 142022 b: a long-period planetary companion in a wide binary.
Eggenberger A., Mayor M., Naef D., Pepe F., Queloz D., Santos N.C.,
Udry S., Lovis C.
<Astron. Astrophys., 447, 1159-1163 (2006)>
=2006A&A...447.1159E 2006A&A...447.1159E
ADC_Keywords: Radial velocities ; Stars, double and multiple ; Planets
Keywords: techniques: radial velocities - stars: individual: HD 142022 -
stars: binaries: visual - stars: planetary systems
Abstract:
We report precise Doppler measurements of HD 142022 obtained during
the past six years with the CORALIE echelle spectrograph at La Silla
Observatory together with a few additional observations made recently
with the HARPS echelle spectrograph. Our radial velocities reveal
evidence of a planetary companion with an orbital period
P=1928+53_-39^d, an eccentricity e=0.53+0.23-0.18, and a
velocity semiamplitude K=92+102-29m/s. The inferred companion
minimum mass is M2sini=5.1+2.6-1.5MJup and the semimajor
axis a=3.03±0.05AU. Only one full orbital revolution has been
monitored yet, and the periastron passage could not be observed since
the star was too low on the horizon. The eccentricity and velocity
semiamplitude remain therefore quite uncertain and the orbital
solution is preliminary. HD 142022 is a chromospherically inactive K0
dwarf, metal rich relative to the Sun, and is the primary component of
a wide binary. HD 142022b is thus a new "planet in binary" candidate,
and its high eccentricity might be due to secular interactions with
the distant stellar companion.
Description:
Table 3 gives the 70 radial-velocity measurements of HD 142022
obtained with the CORALIE spectrograph together with the 6
radial-velocity measurements obtained with the HARPS spectrograph. The
CORALIE spectrograph is mounted on the Swiss telescope at the ESO La
Silla Observatory. The HARPS spectrograph is mounted on the ESO 3.6-m
telescope at the ESO La Silla Observatory. Each instrument has its own
velocity zero point. A velocity offset of -8.8m/s must be added to
the HARPS measurements to convert them into the CORALIE velocity
system.
Objects:
-------------------------------------------------
RA (2000) DE Designation(s)
-------------------------------------------------
16 10 15.0 -84 13 53 HD 142022 = HIP 79242
-------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table3.dat 28 76 Radial velocities of HD 142022
--------------------------------------------------------------------------------
See also:
J/A+A/375/L27 : HD 80606b a planet on an extremely elongated orbit (Naef+ 2001)
J/A+A/356/590 : HD 75289 and HD 130322 planetary companions (Udry+, 2000)
J/A+A/375/205 : The CORALIE survey for extrasolar planets V (Naef+ 2001)
J/A+A/379/999 : Giant planets around HD 28185 and HD 213240 (Santos+ 2001)
J/A+A/388/632 : Radial-velocity of HD 108147 and HD 168746 (Pepe+, 2002)
J/A+A/390/267 : HD 141937, HD 162020, HD 168443 and HD 202206 (Udry+, 2002)
J/A+A/392/215 : A 1.3d period brown dwarf disguised as a planet (Santos+ 2002)
J/A+A/406/373 : Radial velocities of HD 192263 (Santos+, 2003)
J/A+A/415/391 : 16 extra-solar planets discovered with CORALIE (Mayor+, 2004)
J/A+A/480/L33 : Radial velocities of HD 4113 and HD 156846 (Tamuz+, 2008)
J/A+A/410/1039 : Northern extra-solar planets ELODIE survey. I (Perrier+, 2003)
J/A+A/410/1051 : Northern survey. II. GJ777A (Naef+, 2003)
J/A+A/414/351 : Northern survey. III. 3 planetary candidates (Naef+, 2004)
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 F13.5 d BJD Barycentric Julian Date
15- 20 F6.3 km/s RV Barycentric Radial Velocity
22- 26 F5.3 km/s e_RV Uncertainty on Barycentric Radial Velocity
28 I1 -- Inst [1/2] Instrument (1=CORALIE; 2=HARPS)
--------------------------------------------------------------------------------
Acknowledgements: Anne Eggenberger, Anne.Eggenberger(at)obs.ujf-grenoble.fr
References:
Queloz et al., Paper I 2000A&A...354...99Q 2000A&A...354...99Q (Gliese 86)
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 (HD 192263)
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/475/205
Santos et al., Paper VI 2001A&A...379..999S 2001A&A...379..999S, Cat. J/A+A/379/999
Pepe et al., Paper VII 2002A&A...388..632P 2002A&A...388..632P, Cat. J/A+A/388/632
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 (HD 73256)
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 (HD 202206)
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) Patricia Vannier [CDS] 06-May-2008