J/MNRAS/510/1515 Double-lined spectroscopic binaries in M11 (Kovalev+, 2022)
Double-lined spectroscopic binaries in M11.
Kovalev M., Straumit I.
<Mon. Not. R. Astron. Soc. 510, 1515 (2022)>
=2022MNRAS.510.1515K 2022MNRAS.510.1515K (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, spectroscopic ; Clusters, open ; Optical
Keywords: binaries: spectroscopic -
open clusters and associations: individual: M11
Abstract:
We have developed a new method for spectral analysis of binaries. Our
method successfully identifiesSB2 candidates from high-resolution
Gaia-ESO spectra. Compared to the commonly used cross-correlation
function analysis, it works for binaries with rapidly rotating
components. We test our method on synthetic and observational spectra
of BAFG-stars with vsin(i) from 1 to 330km/s in the open cluster M11.
We confirm five previously detected SB2 candidates and find 19 new
ones. For three SB2 candidates we find circular orbits and obtain
dynamical mass ratios.
Description:
Table with parameter for detected double-lined binaries in M 11.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 160 26 Data table with SB2 parameters
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See also:
J/A+AS/128/255 : Proper motions in M 11 (Su+ 1998)
J/MNRAS/310/982 : UBVI CCD Photometry of M11 - II. (Sung+ 1999)
J/PASP/119/1233 : BV photometry of M11 stars (Koo+, 2007)
J/A+A/513/A29 : RACE-OC project: M11 (NGC6705) (Messina+, 2010)
J/A+A/569/A17 : Gaia-ESO Survey: NGC6705 (Cantat-Gaudin+, 2014)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 16 A16 --- Star Cname with encoded sky position RA,DEC
HHMMSSss+DDMMSSs
(GES JHHMMSSss+DDMMSSs in Simbad)
20- 25 F6.2 km/s RV1 Radial velocity of the primary component
27- 31 I5 K Teff1 Effective temperature of the primary
component
33- 36 F4.2 [cm/s2] logg1 Surface gravity of the primary component
38- 40 I3 km/s Vsini1 Projected rotational velocity of the
primary component
43- 48 F6.2 km/s RV2 Radial velocity of the secondary component
50- 54 I5 K Teff2 Effective temperature of the
secondary component
56- 59 F4.2 [cm/s2] logg2 Surface gravity of the secondary component
61- 63 I3 km/s Vsini2 Projected rotational velocity
of the secondary component
65- 69 F5.2 --- [Fe/H] Metallicity (same for both components)
71- 75 F5.2 --- q Mass ratio mass of the primary/mass of the
secondary
77- 80 F4.2 --- fimp Improvement factor
82- 85 F4.2 --- frac Average luminosity contribution
of the primary component
89- 92 F4.2 km/s e_RV1 Error for radial velocity of
the primary component
95- 96 I2 K e_Teff1 Error for effective temperature
of the primary component
98-101 F4.2 [cm/s2] e_logg1 Error for surface
gravity of the primary component
105 I1 km/s e_Vsini1 Error for projected rotational velocity
of the primary component
108-111 F4.2 km/s e_RV2 Error for radial velocity of the
secondary component
113-115 I3 K e_Teff2 Error for effective temperature of
the secondary component
117-120 F4.2 [cm/s2] e_logg2 Error for surface gravity of the
secondary component
123-124 I2 km/s e_Vsini2 Error for projected rotational velocity
of the secondary component
126-129 F4.2 --- e_[Fe/H] Error for metallicity
(same for both components)
131-135 F5.2 --- qlow Lower bound for mass ratio estimate
137-141 F5.2 --- qhigh Higher bound for mass ratio estimate
143-146 F4.2 --- D(chi2) chi2 difference between binary and
single star model
148-150 I3 --- S/N Signal to noise ratio of the spectrum
152-160 A9 --- Com Comments (1)
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Note (1): Comments as follows:
CS = clear composite spectrum
OF = mass ratio from orbital fit
B16 = Bavarsad et al., 2016ApJ...831...48B 2016ApJ...831...48B
M17 = Merle et al., 2017A&A...608A..95M 2017A&A...608A..95M, Cat. J/A+A/608/A95
M20 = Merle et al., 2020A&A...635A.155M 2020A&A...635A.155M, Cat. J/A+A/635/A155
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Acknowledgements:
Mikhail Kovalev, kovalev (at) mpia.de
(End) Patricia Vannier [CDS] 08-Jan-2022