J/MNRAS/454/2946 CSS detached eclipsing binaries (Lee, 2015)
Properties of eclipsing binaries from all-sky surveys.
II. Detached eclipsing binaries in Catalina Sky Surveys.
Lee C.-H.
<Mon. Not. R. Astron. Soc., 454, 2946-2953 (2015)>
=2015MNRAS.454.2946L 2015MNRAS.454.2946L (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Stars, masses ; Stars, ages
Keywords: binaries: eclipsing
Abstract:
Eclipsing binaries play pivotal roles in our understanding of stellar
properties. In the era of all-sky surveys, thousands of eclipsing
binaries have been charted, yet their light curves remain unexplored.
The goal of this work is to use time series and colour information to
extract physical parameters of the binary systems when the
spectroscopic information is not available. Inspired by the work of
Devor et al., we use the Detached Eclipsing Binary Light curve fitter
(DEBiL) and the Method for Eclipsing Component Identification (MECI)
to derive basic properties of the binary systems identified by the
Catalina Sky Surveys. We derive the mass, fractional radius, and age
for 2170 binary systems. We report 211 eccentric systems and compare
their properties to the tidal circularization theory. From the mass
estimate, we present a subsample of low-mass M-dwarfs which warrant
further follow-up to test the stellar models at the low-mass regime.
With MECI, we are able to estimate the distance to individual
eclipsing binary system and use them to probe the large-scale
structure of the Milky Way. We demonstrate that DEBiL and MECI are
instrumental to investigate eclipsing binary light curves in the era
of all-sky surveys, and provide estimates of stellar parameters when
the spectroscopic information is not available.
Description:
Started in 2004, the CSS operated three telescopes in the United
States and Australia to survey the sky between -75°<Dec<70°.
The data taken by the 0.7m Catalina Schmidt Telescope between 2005
April and 2011 June were made public by Drake et al. (2012, Am.
Astron. Soc. Meeting 2012;219:428.20) as Catalina Surveys Data Release
1 (CSDR1). CSDR1 includes ∼200 million sources with V-band magnitude
between 12 and 20 (Drake et al., 2013, Cat. J/ApJ/763/32).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 92 261 Binary properties from MECI, including 2170 CSS
light curves
table2.dat 40 272 Non-detached systems
table3.dat 33 211 Eccentric systems, including 211 light curves
from CSS
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See also:
J/ApJS/213/9 : Catalina Surveys periodic variable stars (Drake+, 2014)
J/MNRAS/453/3474 : ASAS, NSVS & LINEAR detached eclipsing binaries (Lee, 2015)
http://www.lpl.arizona.edu/css : Catalina Sky Survey (CSS) home page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [CSS]
5- 17 I13 --- CSS CSS identification number (G1)
19- 28 F10.6 deg RAdeg Right ascension (J2000)
30- 38 F9.6 deg DEdeg Declination (J2000)
40- 45 F6.3 d Per Period
47- 48 I2 --- l_M1 [-2/-1]? Limit flag on M1 (1)
50- 54 F5.3 Msun M1 Mass of the primary
56- 60 F5.3 Msun e_M1 ?=- rms uncertainty on M1
62- 63 I2 --- l_M2 [-2/-1]? Limit flag on M2 (1)
65- 69 F5.3 Msun M2 Mass of the secondary
71- 75 F5.3 Msun e_M2 ?=- rms uncertainty on M2
77- 78 I2 --- l_Age [-3/-1]? Limit flag on Age (1)
80- 85 F6.3 Gyr Age Age
87- 92 F6.3 Gyr e_Age ?=- rms uncertainty on Age
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Note (1): Please note that when the most likely model is at the edge of the
parameter space, MECI will not be able to bound the solution, hence cannot
estimate the uncertainties. Limit flags are as follows:
-3 = MECI reaches the upper limit
-2 = MECI reaches the lower limit
-1 = the parameter is at its limit
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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- 3 A3 --- --- [CSS]
5- 17 I13 --- CSS CSS identification number (G1)
20- 29 F10.6 deg RAdeg Right ascension (J2000)
31- 40 F10.6 deg DEdeg Declination (J2000)
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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- 3 A3 --- --- [CSS]
5- 17 I13 --- CSS CSS identification number (G1)
19- 25 F7.5 --- ecc Eccentricity
27- 33 F7.5 --- e_ecc rms uncertainty on ecc
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Global notes:
Note (G1): CSS internal identification number.
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History:
From electronic version of the journal
References:
Lee et al., Paper I 2015MNRAS.453.3474L 2015MNRAS.453.3474L, Cat. J/MNRAS/453/3474
(End) Patricia Vannier [CDS] 15-Jul-2016