J/A+A/585/A46 Extrasolar planets. Radial velocities of 5 stars (Bouchy+, 2016)
The SOPHIE search for northern extrasolar planets
VIII. Follow-up of ELODIE candidates: long-period brown-dwarf companions.
Bouchy F., Segransan D., Diaz R.F., Forveille T., Boisse I., Arnold L.,
Astudillo-Defru N., Beuzit J.-L., Bonfils X., Borgniet S., Bourrier V.,
Courcol B., Delfosse X., Demangeon O., Delorme P., Ehrenreich D.,
Hebrard G., Lagrange A.-M., Mayor M., Montagnier G., Moutou C., Naef D.,
Pepe F., Perrier C., Queloz D., Rey J., Sahlmann J., Santerne A.,
Santos N.C., Sivan J.-P., Udry S., Wilson P.A.
<Astron. Astrophys. 585, A46 (2016)>
=2016A&A...585A..46B 2016A&A...585A..46B (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, spectroscopic - Radial velocities
Keywords: techniques: radial velocities - binaries: spectroscopic -
stars: low-mass - brown dwarfs - stars: general
Abstract:
Long-period brown dwarf companions detected in radial velocity surveys
are important targets for direct imaging and astrometry to calibrate
the mass-luminosity relation of substellar objects. Through a
20-year radial velocity monitoring of solar-type stars that began with
ELODIE and was extended with SOPHIE spectrographs, giant exoplanets
and brown dwarfs with orbital periods longer than ten years are
discovered. We report the detection of five new potential brown dwarfs
with minimum masses between 32 and 83MJup orbiting solar-type stars
with periods longer than ten years. An upper mass limit of these
companions is provided using astrometric Hipparcos data, high-angular
resolution imaging made with PUEO, and a deep analysis of the
cross-correlation function of the main stellar spectra to search for
blend effects or faint secondary components. These objects double the
number of known brown dwarf companions with orbital periods longer
than ten years and reinforce the conclusion that the occurrence of
such objects increases with orbital separation. With a projected
separation larger than 100mas, all these brown dwarf candidates are
appropriate targets for high-contrast and high angular resolution
imaging.
Description:
Radial velocities of measurements obtained with ELODIE and SOPHIE
spectrographs of stars with long-period brwon-dwarf companions
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 141 5 Target characteristics, summary of observations
and stellar parameters (tables 1 & 2 of the paper)
table5.dat 40 52 Radial velocities of HD 10844
table6.dat 40 99 Radial velocities of HD 14348
table7.dat 40 74 Radial velocities of HD 18757
table8.dat 40 65 Radial velocities of HD 72946
table9.dat 40 36 Radial velocities of HD 209262
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See also:
J/A+A/505/853 : HD16760 radial velocity curve (Bouchy+, 2009)
J/A+A/513/A69 : HD9446 radial velocity curve (Hebrard+, 2010)
J/A+A/523/A88 : A Jupiter-mass companion around HD 109246 (Boisse+, 2010)
J/A+A/538/A113 : Radial velocities of eight stars (Diaz+, 2012)
J/A+A/545/A55 : Radial velocities of 5 stars (Boisse+, 2012)
J/A+A/563/A22 : Radial velocities of 3 new hot Jupiters (Moutou+, 2014)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Star name
10- 16 F7.3 deg RAdeg Right ascension (J2000)
18- 24 F7.3 deg DEdeg Declination (J2000)
26- 29 F4.2 mag Vmag V magnitude
31- 34 F4.2 mag B-V B-V colour index
36- 38 A3 --- SpType MK spectral type
40- 42 F3.1 km/s vsini Rotational velocity
44 I1 km/s e_vsini rms uncertainty on vsini
46- 50 F5.2 pc Dist Distance
51- 55 F5.2 yr Span Time span
57- 58 I2 --- NEl Number of measurements with Elodie
60- 61 I2 --- NSo Number of measurements with Sophie
63- 66 I4 K Teff Effective temperature
68- 69 I2 K e_Teff rms uncertainty on Teff
71- 74 F4.2 [cm/s2] logg Surface gravity
76- 79 F4.2 [cm/s2] e_logg rms uncertainty on logg
81- 85 F5.2 [-] [Fe/H] Metallicity
87- 90 F4.2 [-] e_[Fe/H] rms uncertainty on [Fe/H]
92- 95 F4.2 km/s vt Microturbulent velocity
97-100 F4.2 km/s e_vt rms uncertainty on vt
102-105 F4.2 Msun M* Stellar mass
107-110 F4.2 Msun e_M* rms uncertainty on M*
112-115 F4.1 Gyr Age Age
117-119 F3.1 Gyr e_Age rms uncertainty on Age
121-125 F5.2 [-] logR'HK Activity index from CaII H+K lines
127-130 F4.2 [-] e_logR'HK rms uncertainty on logR'HK
132-141 A10 --- FileName Name of the file with radial velocity curve
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Byte-by-byte Description of file: table?.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Inst Instrument Name (ELODIE or SOPHIE)
8- 16 F9.4 d BJD Barycentric Julian Date (BJD-2450000)
18- 25 F8.4 km/s RV Radial velocity
27- 32 F6.4 km/s e_RV Radial velocity uncertainty
34- 40 F7.4 km/s Bis ? Bisector span
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Acknowledgements:
Francois Bouchy, francois.bouchy(at)lam.fr
References:
Bouchy et al., Paper I 2009A&A...505..853B 2009A&A...505..853B, Cat. J/A+A/505/853
Hebrard et al. Paper II 2010A&A...513A..69H 2010A&A...513A..69H, Cat. J/A+A/513/A69
Boisse et al., Paper III 2010A&A...523A..88B 2010A&A...523A..88B, Cat. J/A+A/523/A88
Diaz et al., Paper IV 2012A&A...538A.113D 2012A&A...538A.113D, Cat. J/A+A/538/A113
Boisse et al., Paper V 2012A&A...545A..55B 2012A&A...545A..55B, Cat. J/A+A/545/A55
Moutou et al., Paper VI 2014A&A...563A..22M 2014A&A...563A..22M, Cat. J/A+A/563/A22
Courcol et al., Paper VII 2015A&A...581A..38C 2015A&A...581A..38C
(End) Francois Bouchy [LAM, France], Patricia Vannier [CDS] 01-Dec-2015