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J/A+A/480/L33       Radial velocities of HD 4113 and HD 156846    (Tamuz+, 2008)

The CORALIE survey for southern extra-solar planets. XV. Discovery of two eccentric planets orbiting HD 4113 and HD 156846. Tamuz O., Segransan D., Udry S., Mayor M., Eggenberger A., Naef D., Pepe F., Queloz D., Santos N.C., Demory B.-O., Figuera P., Marmier M., Montagnier G. <Astron. Astrophys., 480, L33-L36 (2008)> =2008A&A...480L..33T
ADC_Keywords: Radial velocities ; Stars, double and multiple ; Planets ; Keywords: stars: planetary systems - techniques: radial velocities - methods: observational - stars: low-mass, brown dwarfs Abstract: We report the detection of two very eccentric planets orbiting HD 4113 and HD 156846 with the CORALIE Echelle spectrograph mounted on the 1.2-m Euler Swiss telescope at La Silla. The first planet, HD 4113 b, has minimum mass of msini=1.6±0.2M{Jup}, a period of P=526.59±0.21-days and an eccentricity of e=0.903±0.02. It orbits a metal rich G5V star at a=1.28AU, which displays an additional radial velocity drift of 28m/s/ observed during 8 years. The second planet, HD 156846 b, has minimum mass of msini=10.45±0.05M{Jup}, a period of P=359.51±0.09days, an eccentricity of e=0.847±0.002 and is located at a=1.0AU from its parent star. HD 156846 is a metal rich G0 dwarf and is also the primary of a wide binary system (a>250AU, P>4000-years). Its stellar companion, IDS 17147-1914 B, is a M4 dwarf. Description: We present here radial-velocity measurements for two solar type stars: HD 4113 and HD156846. These radial velocities were obtained using the CORALIE echelle spectrograph mounted on the 1.2-m Euler Swiss telescope at the ESO-La Silla Observatory (Chile). Objects: ------------------------------------------------------------------- RA (2000) DE Designation(s) (table) ------------------------------------------------------------------- 00 43 12.6 -37 58 57 HD 4113 = HIP 3391 (table1) 17 20 34.3 -19 20 01 HD 156846 = HIP 84856 (table2) ------------------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 37 130 Radial velocity measurements for HD 4113 table2.dat 37 54 Radial velocity measurements for HD 156846
See also: J/A+A/356/590 : CORALIE survey for extrasolar planets. II (Udry+, 2000) J/A+A/375/205 : CORALIE survey for extrasolar planets. V (Naef+ 2001) J/A+A/379/999 : CORALIE survey for extrasolar planets. VI (Santos+ 2001) J/A+A/388/632 : CORALIE survey for extrasolar planets. VII (Pepe+, 2002) J/A+A/390/267 : CORALIE survey for extrasolar planets. VIII (Udry+, 2002) J/A+A/392/215 : CORALIE survey for extrasolar planets. IX (Santos+ 2002) J/A+A/406/373 : CORALIE survey for extrasolar planets. XI (Santos+, 2003) J/A+A/415/391 : CORALIE survey for extrasolar planets. XII (Mayor+, 2004) J/A+A/447/1159 : CORALIE survey for extrasolar planets. XIV (Eggenberger+ 2006) Byte-by-byte Description of file: table1.dat table2.dat
Bytes Format Units Label Explanations
1- 14 F14.6 d BJD Barycentric Julian date 17- 25 F9.5 km/s RV Barycentric radial velocity (1) 27- 33 F7.5 km/s e_RV Full RV uncertainty 35- 37 A3 -- Inst [C98,C07] Instrument (2)
Note (1): The CORALIE Echelle spectrograph was upgraded in July 2007 which affected the instrument zero point. We decided to refer to the original CORALIE as CORALIE-98 and to the upgraded one as CORALIE-07. When using both set of data, the instrumental zero point should be adjusted. Note (2): Instrument used as follows: C98 = CORALIE-98 C07 = CORALIE-07
Acknowledgements: Damien Segransan, Damien.Segransan(at)unige.ch References: Queloz et al., Paper I 2000A&A...354...99Q Udry et al., Paper II 2000A&A...356..590U, Cat. J/A+A/356/590 Santos et al., Paper III 2000A&A...356..599S Santos et al., Paper IV 2000A&A...361..265S Santos et al., Paper V 2001A&A...375..205S, Cat. J/A+A/375/205 Santos et al., Paper VI 2001A&A...379..999S, Cat. J/A+A/379/999 Pepe et al., Paper VII 2002A&A...388..632P, Cat. J/A+A/388/632 Udry et al., Paper VIII 2002A&A...390..267U, Cat. J/A+A/390/267 Santos et al., Paper IX 2002A&A...392..215S, Cat. J/A+A/392/215 Udry et al., Paper X 2003A&A...407..679U Santos et al., Paper XI 2003A&A...406..373S, Cat. J/A+A/406/373 Mayor et al., Paper XII 2004A&A...415..391M, Cat. J/A+A/415/391 Correia et al., Paper XIII 2005A&A...440..751C Eggenberger et al., Paper XIV 2006A&A...447.1159E, Cat. J/A+A/447/1159
(End) Damien Segransan [Obs. Geneve], Patricia Vannier [CDS] 29-Jan-2010
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