J/A+A/674/A114 Southern extrasolar planets CORALIE survey. XIX (Barbato+, 2023)
The CORALIE survey for southern extrasolar planets. XIX.
Brown dwarfs and stellar companions unveiled by radial velocity and astrometry.
Barbato D., Segransan D., Udry S., Unger N., Bouchy F., Lovis C., Mayor M.,
Pepe F., Queloz D., Santos N.C., Delisle J.B., Figueira P., Marmier M.,
Matthews E.C., Lo Curto G., Venturini J., Chaverot G., Cretignier M.,
Otegi J.F., Stalport M.
<Astron. Astrophys. 674, A114 (2023)>
=2023A&A...674A.114B 2023A&A...674A.114B (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Exoplanets ; Stars, brown dwarf ;
Radial velocities
Keywords: astrometry - proper motions - stars: fundamental parameters -
binaries: general - techniques: radial velocities -
planets and satellites: dynamical evolution and stability
Abstract:
A historical planet-search on a sample of 1647 nearby southern main
sequence stars has been ongoing since 1998 with the CORALIE
spectrograph at La Silla Observatory, with a backup subprogram
dedicated to the monitoring of binary stars.
We review 25 years of CORALIE measurements and search for Doppler
signals consistent with stellar or brown dwarf companions to produce
an updated catalog of both known and previously unpublished binary
stars in the planet-search sample, assessing the binarity fraction of
the stellar population and providing perspective for more precise
planet-search in the binary sample.
We perform new analysis on the CORALIE planet-search sample radial
velocity measurements, searching for stellar companions and obtaining
orbital solutions for both known and new binary systems. We perform
simultaneous radial velocity and proper motion anomaly fits on the
subset of these systems for which Hipparcos and Gaia astrometry
measurements are available, obtaining accurate estimates of true mass
for the companions.
We find 218 stars in the CORALIE sample to have at least one stellar
companion, 130 of which are not yet published in the literature and
for which we present orbital solutions. The use of proper motion
anomaly allow us to derive true masses for the stellar companions in
132 systems, which we additionally use to estimate stability regions
for possible planetary companions on circumprimary or circumbinary
orbits. Finally, we produce detection limit maps for each star in the
sample and obtain occurrence rates of 0.43+0.23-0.11% and
12.69+0.87-0.77% for brown dwarf and stellar companions
respectively in the CORALIE sample.
Description:
Out of the 1647 stars composing the CORALIE exoplanetsearch
sample, we first exclude known SB2 identified as such either by
archive query or by identifying double peaks in the cross-correlation
function (CCF) of the radial velocity spectra. From this we further
identify a subset of 218 stars for which we detect a robust radial
velocity signal hinting at the presence of a massive companion having
minimum mass Msini≳40MJup.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 175 218 Host stars parameters from SED fits
table2.dat 344 221 Companion orbital parameters
table3.dat 47 218 Dynamical stability regions boundaries
rvdata.dat 69 9260 Radial velocity measurements
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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)
J/A+A/480/L33 : CORALIE survey for extrasolar planets XV (Tamuz+, 2008)
J/A+A/511/A45 : CORALIE survey for extrasolar planets XVI (Segransan+, 2010)
J/A+A/625/A71 : CORALIE survey for extrasolar planets XVII (Rickman+, 2019)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Star Host star name
11- 12 I2 h RAh Simbad right ascension (J2000.0)
14- 15 I2 min RAm Simbad right ascension (J2000.0)
17- 21 F5.2 s RAs Simbad right ascension (J2000.0)
23 A1 --- DE- Simbad declination sign (J2000.0)
24- 25 I2 deg DEd Simbad declination sign (J2000.0)
27- 28 I2 arcmin DEm Simbad declination sign (J2000.0)
30- 34 F5.2 arcsec DEs Simbad declination sign (J2000.0)
36- 50 A15 --- SpType Simbad MK spectral type
52- 55 F4.2 Msun Mstar Stellar mass
58- 61 F4.2 Msun E_Mstar Stellar mass upper uncertainty
64- 67 F4.2 Msun e_Mstar Stellar mass lower uncertainty
70- 73 F4.2 Rsun Rstar Stellar radius
76- 79 F4.2 Rsun E_Rstar Stellar radius upper uncertainty
82- 85 F4.2 Rsun e_Rstar Stellar radius lower uncertainty
88- 91 F4.2 Lsun Lstar Stellar luminosity
94- 97 F4.2 Lsun E_Lstar Stellar luminosity upper uncertainty
100-103 F4.2 Lsun e_Lstar Stellar luminosity lower uncertainty
106-109 F4.2 g/cm3 rho Stellar density
111-115 F5.2 g/cm3 E_rho Stellar density upper uncertainty
118-121 F4.2 g/cm3 e_rho Stellar density lower uncertainty
124-127 F4.2 [cm/s2] logg Stellar surface gravity
130-133 F4.2 [cm/s2] E_logg Stellar surface gravity upper uncertainty
136-139 F4.2 [cm/s2] e_logg Stellar surface gravity lower uncertainty
142-145 I4 K Teff Stellar effective temperature
147-150 I4 K E_Teff Stellar effective temperature
upper uncertainty
153-156 I4 K e_Teff Stellar effective temperature
lower uncertainty
160-164 F5.2 [-] [Fe/H] Stellar metallicity
166-169 F4.2 [-] E_[Fe/H] Stellar metallicity upper uncertainty
172-175 F4.2 [-] e_[Fe/H] Stellar metallicity lower uncertainty
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Star Host star name
11- 18 F8.2 d Prv Orbital period from RV-only solution
20- 26 F7.2 d E_Prv Orbital period from RV-only solution
upper uncertainty
28- 34 F7.2 d e_Prv Orbital period from RV-only solution
lower uncertainty
36- 41 F6.3 km/s Krv RV semiamplitude from RV-only solution
43- 47 F5.3 km/s E_Krv RV semiamplitude from RV-only solution
upper uncertainty
49- 53 F5.3 km/s e_Krv RV semiamplitude from RV-only solution
lower uncertainty
55- 59 F5.3 --- erv Eccentricity from RV-only solution
61- 65 F5.3 --- E_erv Eccentricity from RV-only solution
upper uncertainty
67- 71 F5.3 --- e_erv Eccentricity from RV-only solution
lower uncertainty
73- 79 F7.2 deg l0rv Reference longitude from RV-only solution
81- 85 F5.2 deg E_l0rv Reference longitude from RV-only solution
upper uncertainty
87- 90 F4.2 deg e_l0rv Reference longitude from RV-only solution
lower uncertainty
92- 97 F6.2 deg omrv Argument of periastron from RV-only solution
99-104 F6.2 deg E_omrv Argument of periastron from RV-only solution
upper uncertainty
106-111 F6.2 deg e_omrv Argument of periastron from RV-only solution
lower uncertainty
113-118 F6.2 Mjup Msini Minimum mass from RV-only solution
120-125 F6.2 Mjup E_Msini Minimum mass from RV-only solution
upper uncertainty
127-132 F6.2 Mjup e_Msini Minimum mass from RV-only solution
lower uncertainty
134-137 F4.2 Msun MsiniS Minimum mass from RV-only solution
139-142 F4.2 Msun E_MsiniS Minimum mass from RV-only solution
upper uncertainty
144-147 F4.2 Msun e_MsiniS Minimum mass from RV-only solution
lower uncertainty
149-153 F5.2 au arv Semimajor axis from RV-only solution
155-158 F4.2 au E_arv Semimajor axis from RV-only solution
upper uncertainty
160-163 F4.2 au e_arv Semimajor axis from RV-only solution
lower uncertainty
165-171 F7.2 --- tspan/P Orbital coverage from RV-only solution
173-176 F4.2 --- qmin Minimum binary mass ratio from RV-only
solution
178-184 F7.2 Mjup Mtrue ?=- True mass from RV+astrometry solution
186-191 F6.2 Mjup E_Mtrue ?=- True mass from RV+astrometry
upper uncertainty
193-198 F6.2 Mjup e_Mtrue ?=- True mass from RV+astrometry
lower uncertainty
200-203 F4.2 Msun MtrueS ?=- True mass from RV+astrometry solution
205-208 F4.2 Msun E_MtrueS ?=- True mass from RV+astrometry solution
upper uncertainty
210-213 F4.2 Msun e_MtrueS ?=- True mass from RV+astrometry solution
lower uncertainty
215-219 F5.2 au arva ?=- Semimajor axis from RV+astrometry solution
221-224 F4.2 au E_arva ?=- Semimajor axis from RV+astrometry solution
upper uncertainty
226-229 F4.2 au e_arva ?=- Semimajor axis from RV+astrometry solution
lower uncertainty
231-238 F8.2 d Prva ?=- Orbital period from RV+astrometry solution
240-246 F7.2 d E_Prva ?=- Orbital period from RV+astrometry solution
upper uncertainty
248-254 F7.2 d e_Prva ?=- Orbital period from RV+astrometry solution
lower uncertainty
256-262 F7.5 --- erva ?=- Eccentricity from RV+astrometry solution
264-270 F7.5 --- E_erva ?=- Eccentricity from RV+astrometry solution
upper uncertainty
272-278 F7.5 --- e_erva ?=- Eccentricity from RV+astrometry solution
lower uncertainty
280-285 F6.2 deg irva ?=- Orbital inclination from RV+astrometry
solution
287-292 F6.2 deg E_irva ?=- Orbital inclination from RV+astrometry
solution upper uncertainty
294-299 F6.2 deg e_irva ?=- Orbital inclination from RV+astrometry
solution lower uncertainty
301-306 F6.2 deg omrva ?=- Argument of periastron from RV+astrometry
solution
308-313 F6.2 deg E_omrva ?=- Argument of periastron from RV+astrometry
solution upper uncertainty
315-319 F5.2 deg e_omrva ?=- Argument of periastron from RV+astrometry
solution lower uncertainty
321-324 F4.2 --- qrva ?=- Binary mass ratio from RV+astrometry
solution
326-344 A19 --- pub Previous publication regarding the companion
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 ---- Star Host star name
11- 15 F5.3 au droche Minimum stable circumprimary distance
19- 23 F5.3 au acS ?=- Maximum stable circumprimary distance
27- 33 F7.3 au acP Minimum stable circumbinary distance
35- 39 F5.3 au acSsec ?=- Maximum stable circumsecundary distance
43- 47 A5 ---- Note Minimum or true companion mass
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Byte-by-byte Description of file: rvdata.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Star Target star name
16- 27 F12.4 d BJD Epochs of measurement
31- 43 F13.4 m/s RV ?=-99999 Radial velocity value
45- 56 F12.4 m/s e_RV ?=-99999 Radial velocity uncertainty
61- 69 A9 ---- Inst Instrument name
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Acknowledgements:
Domenico Barbato, Domenico.Barbato(at)unige.ch
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
Pepe et al., Paper VII 2002A&A...388..632P 2002A&A...388..632P
Udy 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
Segransan et al., Paper XVI 2010A&A...511A..45S 2010A&A...511A..45S, Cat. J/A+A/511/A45
Marmier et al., Paper XVII 2013A&A...551A..90M 2013A&A...551A..90M
Rickman et al., Paper XVIII 2019A&A...625A..71R 2019A&A...625A..71R, Cat. J/A+A/625/A71
(End) Patricia Vannier [CDS] 18-Apr-2023