J/MNRAS/373/435 Angular momentum evolution of Algol binaries (Ibanoglu+, 2006)
Angular momentum evolution of Algol binaries.
Ibanoglu C., Soydugan F., Soydugan E., Dervisoglu A.
<Mon. Not. R. Astron. Soc., 373, 435-448 (2006)>
=2006MNRAS.373..435I 2006MNRAS.373..435I
ADC_Keywords: Binaries, eclipsing ; Stars, masses ; Stars, diameters ;
Effective temperatures
Keywords: binaries: eclipsing - stars: evolution
Abstract:
We have compiled the well-determined absolute parameters of Algol-type
binaries. The lists contain the parameters of 74 detached and 61
semi-detached close binaries. The double-lined eclipsing binaries
provide not only the most accurate determinations of stellar mass,
radius and temperatures but also distance-independent luminosity for
each of their individual components. The distributions of the primary
and secondary masses of detached binaries (DBs) are similar, whilst
the secondary masses of the semidetached binaries (SDBs) are mostly
smaller than 2M☉ with a peak in the M2-bin (0.21-1.0). The
components of the DBs are almost all located in the main-sequence
band. On the contrary, the secondary components of the SDBs have
larger radii and luminosity with respect to the same mass and the same
effective temperature of main-sequence counterparts. They occupy a
region of the Hertzsprung-Russell diagram between terminal-age main
sequence and giants.
Description:
For our present study, we have compiled a sample of Algols with
well-determined parameters from various literature sources, including
the recent catalogue of Budding et al. (2004, Cat. J/A+A/417/263)
which was the core of our sample.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 100 74 Sample of detached Algol-type binaries with
best determined absolute parameters
table2.dat 102 61 The absolute parameters of the semidetached
Algol-type binaries
refs.dat 185 94 References
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See also:
J/A+A/417/263 : Catalogue of Algol type binary stars (Budding+, 2004)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Object name
12- 27 A16 --- SpType MK spectral type
29- 35 F7.4 d Porb Orbital period
37- 41 F5.3 --- q Mass ratio (M2/M1)
43- 47 F5.2 solMass M1 Mass of the primary
49- 53 F5.2 solMass M2 Mass of the secondary
55- 59 F5.2 solRad R1 Radius of the primary
61- 64 F4.2 solRad R2 Radius of the secondary
66- 70 F5.3 [K] logT1 Effective temperature of the primary
72- 76 F5.3 [K] logT2 Effective temperature of the secondary
78- 83 F6.3 [solLum] logL1 Luninosity of the primary
85- 90 F6.3 [solLum] logL2 Luninosity of the secondary
92-100 A9 --- Refs References, detailed in refs.dat file
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Object name
12- 29 A18 --- SpType MK spectral type
31- 37 F7.4 d Porb Orbital period
39- 41 A3 --- SB SB type (SB1 or SB2)
43- 47 F5.3 --- q Mass ratio (M2/M1)
49- 53 F5.2 solMass M1 Mass of the primary
55- 58 F4.2 solMass M2 Mass of the secondary
60- 64 F5.2 solRad R1 Radius of the primary
66- 70 F5.2 solRad R2 Radius of the secondary
72- 76 F5.3 [K] logT1 Effective temperature of the primary
78- 82 F5.3 [K] logT2 Effective temperature of the secondary
84- 88 F5.3 [solLum] logL1 Luninosity of the primary
90- 95 F6.3 [solLum] logL2 Luninosity of the secondary
97-102 A6 --- Refs References, detailed in refs.dat file
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Ref Reference number
5- 23 A19 --- BibCode BibCode
25- 57 A33 -- Aut Author's name
59-185 A127 --- Com Comments
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 08-Jun-2007