J/MNRAS/412/1787 Physical parameters of 62 eclipsing binaries (Deb+, 2011)
Physical parameters of 62 eclipsing binary stars using the
All Sky Automated Survey-3 data. I.
Deb S., Singh H.P.
<Mon. Not. R. Astron. Soc., 412, 1787-1803 (2011)>
=2011MNRAS.412.1787D 2011MNRAS.412.1787D
ADC_Keywords: Binaries, eclipsing ; Photometry ; Morphology ; Stars, masses ;
Keywords: binaries: close - binaries: eclipsing - stars: evolution -
stars: fundamental parameters - stars: magnetic field - starspots
Abstract:
We present a detailed light-curve analysis of publicly available
V-band observations of 62 binary stars, mostly contact binaries,
obtained by the All Sky Automated Survey (ASAS)-3 project between 2000
and 2009. Eclipsing binaries are important astronomical targets for
determining the physical parameters of component stars from the
geometry of their orbits. They provide an independent direct method of
measuring the radii of stars. We improved the ASAS determined periods
and ephemerides, and obtained the Fourier parameters from the phased
light curves of these 62 stars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 107 62 Basic information on the ASAS stars used
for the analysis
table2.dat 62 62 Spectral type and radial velocity information
for the ASAS stars
table3.dat 165 62 Fourier parameters of the 62 ASAS eclipsing binaries
table4.dat 120 62 Results obtained from the light-curve modelling
table5.dat 124 62 Physical parameters of the 62 eclipsing binary stars
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See also:
II/264 : ASAS Variable Stars in Southern hemisphere (Pojmanski+, 2002-2005)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq Sequential number
4- 16 A13 --- ASAS ASAS name (HHMMSS+DDMM.m)
18- 26 A9 --- Name Other name
28- 29 I2 h RAh Right ascension (J2000)
31- 32 I2 min RAm Right ascension (J2000)
34- 38 F5.2 s RAs Right ascension (J2000)
40 A1 --- DE- Declination sign (J2000)
41- 42 I2 deg DEd Declination (J2000)
44- 45 I2 arcmin DEm Declination (J2000)
47- 51 F5.2 arcsec DEs Declination (J2000)
53- 61 F9.6 d PerA ASAS period
65- 72 F8.6 d PME Period determined with minimization of entropy
method
74- 76 A3 --- Type Type of eclipsing binary (1)
78- 83 F6.3 mag Vmag V magnitude
85- 89 F5.3 mag J-K J-K colour index
91- 92 I2 mmag e_J-K rms uncertainty on J-K
95-104 F10.5 d Epoch PHOEBE epoch (JD-2450000)
106-107 I2 10-5d e_Epoch rms uncertainty on Epoch
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Note (1): Type of binary as follows:
A = A-type contact binary (if the primary minimum is a transit)
B = B-type contact binary (temperature difference of 1000K or larger
between the components)
ED = detached contact binary
ESD = semi-detached contact binary
W = W-type contact binary (if the primary minimum is a occultation)
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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- 13 A13 --- ASAS ASAS name (HHMMSS+DDMM.m)
15- 20 A6 --- SpType MK spectral type
22- 27 F6.2 km/s K1 Radial velocity semi-amplitude of the primary
29- 33 F5.2 km/s e_K1 rms uncertainty on K1
35- 40 F6.2 km/s K2 Radial velocity semi-amplitude of the secondary
42- 46 F5.2 km/s e_K2 rms uncertainty on K2
48- 52 F5.3 --- q Mass ratio
54- 57 F4.3 --- e_q ? rms uncertainty on q
59- 62 A4 --- Ref References (2)
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Note (2): References as follows:
1 = Lu & Rucinski (1999AJ....118..515L 1999AJ....118..515L)
2 = Rucinski & Lu (1999AJ....118.2451R 1999AJ....118.2451R)
3 = Rucinski et al. (2000AJ....120.1133R 2000AJ....120.1133R)
4 = Rucinski et al. (2001AJ....122.1974R 2001AJ....122.1974R)
5 = Lu et al. (2001AJ....122..402L 2001AJ....122..402L)
6 = Rucinski et al. (2002AJ....124.1738R 2002AJ....124.1738R)
7 = Rucinski et al. (2003AJ....125.3258R 2003AJ....125.3258R)
8 = Pych et al. (2004AJ....127.1712P 2004AJ....127.1712P)
9 = Pribulla et al. (2006AJ....132..769P 2006AJ....132..769P)
10 = Pribulla et al. (2007AJ....133.1977P 2007AJ....133.1977P)
11 = Duerbeck & Rucinski (2006PASA...23..154D 2006PASA...23..154D)
12 = Rucinski et al. (2008AJ....136..586R 2008AJ....136..586R)
13 = Pribulla et al. (2009AJ....137.3655P 2009AJ....137.3655P)
14 = Rucinski & Duerbeck (2006AJ....132.1539R 2006AJ....132.1539R)
15 = Szalai et al. (2007A&A...465..943S 2007A&A...465..943S)
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- ASAS ASAS name (HHMMSS+DDMM.m)
15- 22 F8.5 --- m0 Mean magnitude at the zero-point of the
phased light curve, m0
24- 31 F8.5 --- a1 a1 Fourier parameter
33- 40 F8.5 --- b1 b1 Fourier parameter
42- 48 F7.5 --- a2 a2 Fourier parameter
50- 57 F8.5 --- b2 b2 Fourier parameter
59- 66 F8.5 --- a3 a3 Fourier parameter
68- 75 F8.5 --- b3 b3 Fourier parameter
77- 84 F8.5 --- a4 a4 Fourier parameter
86- 93 F8.5 --- b4 b4 Fourier parameter
95-101 F7.5 --- e_m0 rms uncertainty on m0
103-109 F7.5 --- e_a1 rms uncertainty on a1
111-117 F7.5 --- e_b1 rms uncertainty on b1
119-125 F7.5 --- e_a2 rms uncertainty on a2
127-133 F7.5 --- e_b2 rms uncertainty on b2
135-141 F7.5 --- e_a3 rms uncertainty on a3
143-149 F7.5 --- e_b3 rms uncertainty on b3
151-157 F7.5 --- e_a4 rms uncertainty on a4
159-165 F7.5 --- e_b4 rms uncertainty on b4
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- ASAS ASAS name (HHMMSS+DDMM.m)
15- 19 F5.2 deg i Inclination
21- 24 F4.2 deg e_i rms uncertainty on i
26- 30 F5.3 --- Omega1 Lagrangian surface potential of the primary
32- 36 F5.3 --- e_Omega1 ?=- rms uncertainty on Omega1
38- 42 F5.3 --- Omega2 Lagrangian surface potential of the secondary
44- 48 F5.3 --- e_Omega2 ?=- rms uncertainty on Omega2
50- 53 F4.2 --- x1 Limb-darkening coefficient of the primary
55- 58 F4.2 --- x2 Limb-darkening coefficient of the secondary
60- 64 F5.3 --- r1 Fractional stellar radius of the primary
66- 70 F5.3 --- e_r1 rms uncertainty on r1
72- 76 F5.3 --- r2 Fractional stellar radius of the secondary
78- 82 F5.3 --- e_r2 rms uncertainty on r2
84- 87 I4 K T1 Temperature of the primary
89- 91 I3 K e_T1 rms uncertainty on T1 (3)
93- 96 I4 K T2 Temperature of the secondary
98-100 I3 K e_T2 rms uncertainty on T2
102 A1 --- l_f Limit flag on f
103-106 F4.2 --- f Fill-out factor (4)
108-112 F5.3 --- l3 Third light
114-118 F5.3 --- e_l3 ? rms uncertainty on l3
120 A1 --- r_l3 [ab+] origin of the solution adopted (5)
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Note (3): The errors in T1 are obtained from the colour/spectral
type-temperature calibration (Cox, 2000, Allen's astrophysical
quantities, 4th edn. AIP Press (Springer), New York ) and are not
obtained from the modelling.
Note (4): The fill-out factor (f) is given by
f=[Ωin-Ω1,2]/[Ωin-Ωout], i
where Ωin and Ωout refer to the inner and the outer
Lagrangian surface potentials, respectively, and Ω1,2 represents
the potential of the surface of star 1, 2 respectively.
Note (5): Notes as follows:
+ = The solutions are obtained using the qph values as described in text.
a = Pribulla et al. (2009AJ....137.3655P 2009AJ....137.3655P)
b = Pribulla et al. (2007AJ....133.1977P 2007AJ....133.1977P)
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- ASAS ASAS name (HHMMSS+DDMM.m)
15- 20 F6.3 Rsun a Semi-major axis of the binary
22- 26 F5.3 Rsun e_a rms uncertainty on a
28- 32 F5.3 Msun Mass Total mass
34- 38 F5.3 Msun e_Mass rms uncertainty on Mass
40- 44 F5.3 Msun f(M) Mass function (=(M1+M2)/sin3i)
46- 50 F5.3 Msun e_f(M) rms uncertainty on f(M)
52- 56 F5.3 Msun M1 Mass of the primary
58- 62 F5.3 Msun e_M1 rms uncertainty on M1
64- 68 F5.3 Msun M2 Mass of the secondary
70- 74 F5.3 Msun e_M2 rms uncertainty on M2
76- 80 F5.3 Rsun R1 Radius of the primary
82- 86 F5.3 Rsun e_R1 rms uncertainty on R1
88- 92 F5.3 Rsun R2 Radius of the secondary
94- 98 F5.3 Rsun e_R2 rms uncertainty on R2
100-105 F6.3 Lsun L1 Luminosity of the primary
107-111 F5.3 Lsun e_L1 rms uncertainty on L1
113-118 F6.3 Lsun L2 Luminosity of the secondary
120-124 F5.3 Lsun e_L2 rms uncertainty on L2
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 27-Oct-2011