J/ApJS/275/12 OGLE-IV EBs derived parameters (Wang+, 2024)
An efficient method for batch derivation of detached eclipsing binary
parameters: analysis of 34,907 OGLE systems.
Wang J., Ding Xu, Liu W., Yu L., Xu C., Ji K.
<Astrophys. J. Suppl. Ser., 275, 12 (2024)>
=2024ApJS..275...12W 2024ApJS..275...12W
ADC_Keywords: Binaries, eclipsing; Effective temperatures; Stars, diameters;
Surveys; Optical
Keywords: Astronomy data analysis ; Eclipsing binary stars ;
Detached binary stars
Abstract:
Detached eclipsing binary (EB) systems are crucial for measuring the
physical properties of stars that evolve independently. Large-scale
time-domain surveys have released a substantial number of light curves
for detached EBs. Utilizing the Physics of Eclipsing Binaries package
in conjunction with Markov Chain Monte Carlo (MCMC) methods for batch
parameter derivation poses significant computational challenges,
primarily due to the high computational cost and time demands.
Therefore, this paper develops an efficient method based on the neural
network model and the stochastic variational inference method (denoted
NNSVI) for the rapid derivation of parameters for detached EBs. For
studies involving more than three systems, the NNSVI method
significantly outperforms techniques that combine MCMC methods in
terms of parameter inference speed, making it highly suitable for the
batch derivation of large numbers of light curves. We efficiently
derived parameters for 34,907 detached EBs, selected from the Optical
Gravitational Lensing Experiment catalog and located in the Galactic
bulge, using the NNSVI method. A catalog detailing the parameters of
these systems is provided. Additionally, we compared the parameters of
two double-lined detached EBs with those from previous studies and
found the estimated parameters to be essentially identical.
Description:
Our observational sample is drawn from the data released by
Soszynski+ (2016, J/AcA/66/405), sourced from OGLE-IV
(Udalski+ 2015AcA....65....1U 2015AcA....65....1U). The OGLE-IV survey commenced in 2010,
utilizing a 32-detector mosaic camera mounted on the 1.3m Warsaw
telescope at the Las Campanas Observatory in Chile. The camera has a
resolution of 0.26"/pixel. OGLE-IV covers over 3000deg2 of the sky,
regularly monitoring more than one billion sources.
After cuts described in Section 2, we derived parameters for a total
of 34,907 detached eclipsing binaries (EBs).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 141 34907 Detached eclipsing binaries (EBs) catalog
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See also:
I/357 : Gaia DR3 Part 3. Non-single stars (Gaia Collaboration, 2022)
J/ApJS/190/1 : A survey of stellar families (Raghavan+, 2010)
J/other/Sci/337.444 : RV curves of Galactic massive O stars (Sana+, 2012)
J/AcA/66/405 : Gal. bulge eclipsing & ellipsoidal binaries (Soszynski+, 2016)
J/ApJS/237/28 : WISE catalog of periodic variable stars (Chen+, 2018)
J/ApJS/249/18 : The ZTF catalog of periodic variable stars (Chen+, 2020)
J/ApJ/904/13 : Rvel for 10 giant eclipsing binaries (Graczyk+, 2020)
J/A+A/649/A178 : NGC6791 V604 Lyr disentangled component sp. (Brogaard+, 2021)
J/A+A/666/A128 : 10 EBs photometry and velocimetry (Graczyk+, 2022)
J/ApJS/258/16 : TESS Eclipsing Binary stars. I. Sectors 1-26 (Prsa+, 2022)
J/A+A/674/A170 : OGLE-IV eclipsing binaries residual light curves (Adam+, 2023)
J/AJ/165/30 : Eclipsing Binaries from LAMOST Survey. III. (Xiong+, 2023)
J/AJ/167/192 : TESS catalog of 1322 contact binary candidates (Ding+, 2024)
J/ApJS/271/32 : ASAS-SN eclipsing contact binaries with Gaia DR3 (Li+, 2024)
J/ApJS/272/31 : RVs & metallicities of RR Lyrae from LAMOST (Wang+, 2024)
http://www.astrouw.edu.pl/ogle/ogle4/OCVS/blg/ecl/ : OGLE-IV release
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- ID OGLE identifier
21- 29 F9.5 deg RAdeg [258.24/279.3] Right Ascension (J2000)
31- 39 F9.5 deg DEdeg [-38.5/-19.2] Declination (J2000)
41- 51 F11.7 d Per [0.095/516.5] Orbital period
53- 60 F8.3 K Teff1 [2550/8000] Primary initial effective
temperature from Gaia DR3
62- 66 F5.3 --- T2/T1 [0.44/1.2] Temperature ratio
68- 72 F5.3 --- e_T2/T1 [0.001/0.06] Uncertainty in T2/T1
74- 79 F6.3 deg Inc [61/90] Inclination angle
81- 85 F5.3 deg e_Inc [0.02/4] Uncertainty in Inc
87- 91 F5.3 --- q [0.002/1] Mass ratio; M2/M1
93- 97 F5.3 --- e_q [0.001/0.3] Uncertainty in q
99-103 F5.3 Rsun r1 [0.028/0.6] Primary radius
105-109 F5.3 Rsun e_r1 [0/0.04] Uncertainty in r1
111-115 F5.3 Rsun r2 [0.017/0.4] Secondary radius
117-121 F5.3 Rsun e_r2 [0/0.05] Uncertainty in r2
123-128 E6.4 --- e [0/0.2] Orbital eccentricity
130-135 E6.4 --- e_e [0/0.04] Uncertainty in e
137-141 F5.3 --- R2 [0.85/1] Goodness of Fit, R2
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 03-Sep-2025