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J/AZh/78/1104    Age and metallicity in eclipsing binaries     (Kovaleva, 2001)

Age and metallicity estimates of intermediate mass stars in eclipsing binaries. Kovaleva D.A. <Astron. Zh. 78, 1104 (2001)> =2001AZh....78.1104K =2001ARep...45..972K
ADC_Keywords: Binaries, eclipsing ; Stars, ages ; Abundances Abstract: Based on the set of high accuracy observational data on the components of SB2 eclipsing binaries and the grid of stellar models calculated by Geneva group for the wide range of masses and abundances, we estimate most probable ages and metallicities for the 43 systems using constraints arising from common origin of the components. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file stars.dat 35 43 Coordinates for stars table.dat 175 43 Observational (bibliographic) spectra, masses, radii, effective temperatures, luminosities, and calculated ages and metallicities for the 43 SB2 eclipsing systems
See also: J/AZh/79/259 : Models for Intermediate-Mass Eclipsing Binaries (Kovaleva, 2002) Byte-by-byte Description of file: stars.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Name of the star system 12- 13 I2 h RAh Right ascension (J2000) 15- 16 I2 min RAm Right ascension (J2000) 18- 22 F5.2 s RAs Right ascension (J2000) 24 A1 --- DE- Declination sign (J2000) 25- 26 I2 deg DEd Declination (J2000) 28- 29 I2 arcmin DEm Declination (J2000) 31- 35 F5.2 arcsec DEs Declination (J2000)
Byte-by-byte Description of file: table.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name Name of the star system 11- 22 A12 --- Ident HD/BD/other identifications 23- 28 A6 --- Sp1 Spectrum of the primary star 29- 35 A7 --- Sp2 Spectrum of the secondary star 36- 40 F5.3 solMass M1 Mass of the primary in solar units 42- 46 F5.3 solMass e_M1 Uncertainty in M1 49- 53 F5.3 solMass M2 Mass of the secondary in solar units 55- 59 F5.3 solMass e_M2 Uncertainty in M2 62- 66 F5.3 solRad R1 Radius of the primary in solar units 68- 72 F5.3 solRad e_R1 Uncertainty in R1 75- 79 F5.3 solRad R2 Radius of the secondary in solar units 81- 85 F5.3 solRad e_R2 Uncertainty in R2 88- 92 F5.3 [K] logTeff1 Log(Teff) of the primary 94- 98 F5.3 [K] e_logTeff1 Uncertainty in logTeff1 101-105 F5.3 [K] logTeff2 Log(Teff) of the secondary 107-111 F5.3 [K] e_logTeff2 Uncertainty in logTeff2 114-118 F5.2 [solLum] logL1 LogL of the primary in solar units 121-124 F4.2 [solLum] e_logL1 Uncertainty in logL1 127-132 F6.3 [solLum] logL2 LogL of the secondary in solar units 134-137 F4.2 [solLum] e_logL2 Uncertainty in logL2 140-144 F5.2 [Sun] [Fe/H] Metallicity of the binary in [Fe/H] 147-150 F4.2 [Sun] e_[Fe/H] Uncertainty in [Fe/H] 154-157 F4.2 [yr] logAge Age of the binary in log(yrs) 160-163 F4.2 [yr] e_logAge Uncertainty in logAge 167-171 F5.3 --- Devi Dimensionless characteristics (1) 174-175 I2 --- Refs [1-10] Reference for masses, radii, temperatures and luminosities (2)
Note (1): Dimensionless characteristics of age and metallicity estimates quality. Devi > 3 correspond to least reliable estimates Note (2): References: 1: Malkov, 1993BICDS..42...27M 2: Degirmengi, 1997Ap&SS.253..237D 3: Barembaum & Etzel, 1995AJ...109.2680B 4: Nordstrom & Johansen, 1994A&A..282..787N 5: Gimenez & Quintana, 1992A&A..260..227G 6: Clausen, 1991A&A..246..397C 7: Latham et al., 1996A&A..314..864L 8: Holmgren et al., 1991A&A..248..129H 9: Popper, 1997AJ...114.1195P 10: Gimenez et al., 1994A&A...291..795G

(End) Dana Kovaleva, Veta Avedisova [INASAN] 18-Jul-2002
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