J/AcA/74/241 OGLE-IV MC eclipsing and ellipsoidal binaries (Glowacki+, 2024)
The OGLE Collection of Variable Stars.
Over 75 000 Eclipsing and Ellipsoidal Binary Systems in the Magellanic Clouds.
Glowacki M., Soszynski I., Udalski A., Szymanski M.K., Skowron J.,
Skowron D.M., Mroz P., Pietrukowicz P., Poleski R., Kozlowski S.,
Iwanek P., Wrona M., Ulaczyk K., Rybicki K., Gromadzki M.,
Mroz M.J. and Urbanowicz M.
<Acta Astron. 74, 241 (2024)>
=2024AcA....74..241G 2024AcA....74..241G (SIMBAD/NED BibCode)
ADC_Keywords: Magellanic Clouds ; Binaries, eclipsing ; Photometry ; Optical
Keywords: binaries: eclipsing - surveys - catalogs
Abstract:
We present an updated collection of eclipsing and ellipsoidal binary
systems in the Large and Small Magellanic Clouds (LMC and SMC), as
observed by the Optical Gravitational Lensing Experiment (OGLE)
survey. The catalog comprises a total of 75 400 binary systems,
including 63 252 in the LMC and 12 148 in the SMC. The sample is
categorized into 67 971 eclipsing and 7429 ellipsoidal variables. For
all stars, we provide I-band and V-band photometric time series
collected between 2010 and 2024 during the fourth phase of the OGLE
project (OGLE-IV). We discuss methods used to identify binary systems
in the OGLE data and present objects of particular interest, including
dou- ble periodic variables, transient eclipsing binaries, double
eclipsing binaries, and binary systems with pulsating stars. We
present a comparative analysis based on the most comprehensive
catalogs of vari- able stars in the Magellanic System, compiled from
surveys like Gaia, ASAS-SN, and EROS-2, and included in the
International Variable Star Index.
Description:
We presented the OGLE collection of eclipsing and ellipsoidal
variables in the Magellanic Clouds. The new catalog contains over 50%
more objects than the one previously published by Pawlak et al.
(2016AcA....66..421P 2016AcA....66..421P, Cat. J/AcA/66/421), and it is the largest
catalog of such binary systems in the Magellanic Clouds up to date.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
smcident.dat 126 12148 Identification of SMC stars
(27-Aug-2025 version)
smcecl.dat 73 10799 Parameters of eclipsing binary systems in SMC
smcell.dat 73 1349 Parameters of ellipsoidal binary systems in SMC
smcrem.dat 66 197 Individual remarks on SMC stars
lmcident.dat 130 63252 Identification of LMC stars
(27-Aug-2025 version)
lmcecl.dat 73 57172 Parameters of eclipsing binary systems in LMC
lmcell.dat 73 6080 Parameters of ellipsoidal binary systems in LMC
lmcrem.dat 71 881 Individual remarks on LMC stars
--------------------------------------------------------------------------------
See also:
J/AcA/48/563 : BVI photometry of OGLE SMC eclipsing binaries (Udalski+, 1998)
J/AcA/53/1 : OGLE eclipsing binaries in LMC (Wyrzykowski+, 2003)
J/AcA/54/1 : OGLE II SMC eclipsing binaries (Wyrzykowski+, 2004)
J/AcA/61/103 : VI light curves of LMC eclipsing binaries (Graczyk+, 2011)
J/AcA/62/33 : OGLE II detached red giant eclipsing binary twins (Nataf+, 2012)
J/AcA/63/115 : OGLE-III Galactic disk eclipsing binaries (Pietrukowicz+, 2013)
J/AcA/66/405 : Galactic bulge eclipsing & ellipsoidal binaries
(Soszynski+, 2016)
J/AcA/66/421 : Eclipsing binaries in the Magellanic System (Pawlak+, 2016)
Byte-by-byte Description of file: smcident.dat lmcident.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 18 A18 --- Star Star's ID,
OGLE-LMC-ECL-NNNNN or OGLE-SMC-ECL-NNNNN
21- 23 A3 --- Type Subtype (C - contact, NC - non-contact,
CV - cataclysmic variable,
ELL - ellipsoidal variable)
25- 26 I2 h RAh Right ascension (J2000)
28- 29 I2 min RAm Right ascension (J2000)
31- 35 F5.2 s RAs Right ascension (J2000)
37 A1 --- DE- Declination sign (J2000)
38- 39 I2 deg DEd Declination (J2000)
41- 42 I2 arcmin DEm Declination (J2000)
44- 47 F4.1 arcsec DEs Declination (J2000)
50- 65 A16 --- OGLE-IV OGLE-IV ID
67- 81 A15 --- OGLE-III OGLE-III ID
83- 97 A15 --- OGLE-II OGLE-II ID
99-130 A32 --- OName Other designation
--------------------------------------------------------------------------------
Byte-by-byte Description of file: smcecl.dat lmcecl.dat smcell.dat lmcell.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 18 A18 --- Star Star's ID,
OGLE-LMC-ECL-NNNNN or OGLE-SMC-ECL-NNNNN
21- 26 F6.3 mag Imag I-band magnitude at the maximum light
28- 33 F6.3 mag Vmag ?=- V-band magnitude at the maximum light
35- 46 F12.7 d Per ?=- Orbital period
49- 60 F12.4 d T0 ?=- Epoch of of the primary eclipse (HJD)
63- 67 F5.3 mag Depth1 Depth of the primary eclipse
69- 73 F5.3 mag Depth2 Depth of the secondary eclipse
--------------------------------------------------------------------------------
Byte-by-byte Description of file: smcrem.dat lmcrem.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 18 A18 --- Star Star's ID,
OGLE-LMC-ECL-NNNNN or OGLE-SMC-ECL-NNNNN
20- 71 A52 ---- Rem Remark
--------------------------------------------------------------------------------
History:
Copied at https://www.astrouw.edu.pl/ogle/ogle4/OCVS/lmc/ecl/ and
https://www.astrouw.edu.pl/ogle/ogle4/OCVS/smc/ecl/
(End) Patricia Vannier [CDS] 27-Aug-2025