J/A+A/619/A81 Multiplicity among solar-type stars. IV. (Halbwachs+, 2018)
Multiplicity among solar-type stars.
IV. The CORAVEL radial velocities and the spectroscopic orbits of the nearby K
dwarfs.
Halbwachs J.-L., Mayor M., Udry S.
<Astron. Astrophys. 619, A81 (2018)>
=2018A&A...619A..81H 2018A&A...619A..81H (SIMBAD/NED BibCode)
ADC_Keywords: Stars, nearby ; Stars, double and multiple ; Stars, K-type
Keywords: solar neighborhood - binaries: spectroscopic - stars: solar-type -
stars: late-type
Abstract:
A sample of 261 K-type stars was observed with the spectrovelocimeter
CORAVEL. The stars with a variable radial velocity were detected and
the orbital elements of the spectroscopic binaries were derived.
Description:
We present the catalogue of the radial velocity measurements obtained
with CORAVEL for all the 261 K stars of the survey, and the orbital
elements derived for the spectroscopic binaries. The catalogue
contains also 9 G type binaries that received additional measurements
since 1991, and for which the orbital elements are revised or derived
for the first time.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
rv-avg.dat 77 269 Mean CORAVEL RV and variability information
(table A1 of the paper)
rv-meas.dat 48 5413 CORAVEL Radial Velocity measurements
(table 1 of the paper)
rv-mease.dat 48 73 Elodie RV measurements of GJ 1069 and GJ 554
(table 1 of the paper)
taborbit.dat 264 44 Orbital elements of SBs
(table A2 of the paper)
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See also:
III/278 : Double stars with wide separations in the AGK3 (Halbwachs+, 2016)
Byte-by-byte Description of file: rv-avg.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- GJ GJ number (NNNN or NNN.N )
7 A1 --- m_GJ GJ component, if any
9- 20 A12 --- OName Other identification (1)
22- 25 F4.2 mag B-V Color Index used to correct the CORAVEL RV (2)
27- 33 F7.2 km/s Mean radial velocity (3)
35- 39 F5.2 km/s e_ Mean error on
41- 45 F5.2 km/s s_RV Standard deviation of the RV measurements
47- 52 F6.2 --- E/I Ratio external to internal error
54- 58 F5.3 --- P(chi2) Probability of the chi2 of the RV
60- 62 I3 --- N1 Number of RV of the primary component
64- 66 I3 --- Ntot Total number of RV measurements
68- 71 I4 d DeltaT Timespan of the observations
73- 76 A4 --- Status Binarity status (4)
77 A1 --- ftaborb [+*] Flag when the SB orbit is in
taborbit.dat (5)
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Note (1): the other identification is HD or BD or HIP or AG
Note (2): for the 9 G-type stars, B-V=0.63
Note (3): when available, RV of the barycentre
Note (4): The status is "CST" when P(chi2) is more than 1 %. Otherwise, it is
SB1, or SB2 when RV of the secondary component was measured. An "O" indicates
that the orbital elements were derived.
Note (5): The flag is "*" when the SB orbit is the first ever derived, "+"
otherwise.
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Byte-by-byte Description of file: rv-meas.dat rv-mease.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- GJ GJ number (NNNN or NNN.N)
7 A1 --- m_GJ GJ component, if any
9- 18 A10 "date" Obs.date Observation Epoch
20- 29 F10.4 d JD Observation Epoch, (JD-2400000)
31- 38 F8.3 km/s RV Radial velocity
40- 44 F5.3 km/s e_RV Uncertainty of the radial velocity
46 I1 --- Nc [1/2] Component (1 or 2)
48 A1 --- Flag [R] "R" indicates that the measurement was
rejected in the calculation of the orbital
elements
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Byte-by-byte Description of file: taborbit.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- GJ GJ number (NNN or NNN.N )
7- 11 A5 --- m_GJ GJ components, if any
13- 25 A13 --- OName Other name (HD/BD)
27- 39 F13.7 d P Orbital period
41- 53 F13.7 d e_P ? Uncertainty of P
55- 64 F10.4 d T0 Periastron epoch (BJD-2400000)
66- 75 F10.4 d e_T0 Uncertainty of T0
77- 82 F6.4 --- Ecc Eccentricity
84- 89 F6.4 --- e_Ecc ? Uncertainty of Ecc
91- 96 F6.2 deg w ? Periastron longitude
98-103 F6.2 deg e_w ? Uncertainty of w
105-111 F7.4 km/s K1 Semi-amplitude of RV of the primary component
113-119 F7.4 km/s e_K1 ? Uncertainty of K1
121-127 F7.4 km/s K2 ? Semi-amplitude of the secondary component
129-135 F7.4 km/s e_K2 ? Uncertainty of K2
137-143 F7.3 km/s V0 ? RV of the barycentre
145-151 F7.3 km/s e_V0 ? Uncertainty of V0
153-157 F5.3 km/s O-C ? Standard deviation of the residuals
159-161 I3 --- N1 Number of CORAVEL measurements of the
primary RV
163-164 I2 --- n1 ? Number of RV measurements of the primary
from other sources
166-168 I3 --- N2 ? Number of CORAVEL measurements of the
secondary RV
170-177 F8.4 Gm a1sini Semi-major axis of the primary orbit *sini
179-186 F8.4 Gm e_a1sini Uncertainty of a1sini
188-195 F8.4 Gm a2sini ? Semi-major axis of the secondary orbit *sini
197-204 F8.4 Gm e_a2sini ? Uncertainty of a2sini
206-214 F9.7 Msun fM ? Mass function of SB1 systems
216-224 F9.7 Msun e_fM ? Uncertainty of fM
226-234 F9.7 Msun M1sin3i ? Primary mass * sin3i
236-244 F9.7 Msun e_M1sin3i ? Uncertainty of M1sin3i
246-254 F9.7 Msun M2sin3i ? Secondary mass * sin3i
256-264 F9.7 Msun e_M2sin3i ? Uncertainty of M2sin3i
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Acknowledgements:
Jean-Louis Halbwachs, jean-louis.halbwachs(at)astro.unistra.fr
References:
Duquennoy et al., Paper I 1991A&AS...88..281D 1991A&AS...88..281D
Duquennoy & Mayor, Paper II 1991A&A...248..485D 1991A&A...248..485D
Halbwachs et al., Paper III 2003A&A...397..159H 2003A&A...397..159H
(End) Jean-Louis Halbwachs [ObAS], Patricia Vannier [CDS] 03-Aug-2018