=======================================================================
             The Optical Gravitational Lensing Experiment.
                The OGLE-III Catalog of Variable Stars.
       XII. Eclipsing Binary Stars in the Large Magellanic Cloud

   D. Graczyk, I. Soszynski, R. Poleski, G. Pietrzynski, A. Udalski,
       M.K. Szymanski, M. Kubiak, L. Wyrzykowski, and K. Ulaczyk

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darek@astro-udec.cl


This directory contains the twelfth part of the OGLE-III Catalog of
Variable Stars - Eclipsing Binary Stars in the Large Magellanic Cloud.

The directory structure is as follows:

README            - this file

ident.dat         - identification of stars

ecl.dat           - parameters of eclipsing binary stars

phot/I/           - I-band photometry of individual objects
phot/V/           - V-band photometry of individual objects
phot.tar.gz       - gzipped phot/ directory

fcharts/          - finding charts for individual objects
                       
remarks.txt       - remarks on selected objects

Wyrzykowski.txt   - cross-identification with the catalog of Wyrzykowski et al.
Graczyk_Eyer.txt  - cross-identification with the catalog of Graczyk & Eyer
Derekas.txt       - cross-identification with the catalog of Derekas et al.
Faccioli.txt      - cross-identification with the catalog of Faccioli et al.
Poleski.txt       - cross-identification with the catalog of Poleski et al.

pap.pdf           - postscript version of the paper Graczyk et al. (2011),
                    Acta Astron. 61, 103, describing the catalog.


Format of the file ident.dat:
--------------------------------------------------------------------------
 Bytes  Format Units   Description
--------------------------------------------------------------------------
  1- 18  A18   ---     Star's ID in the form OGLE-LMC-ECL-NNNNN
 21- 28  A8    ---     OGLE-III field
 30- 35  I6    ---     OGLE-III database number
 37- 43  A7    ---     Subtype of the eclipsing variability
 45- 46  I2    h       Right ascension, equinox J2000.0 (hours)
 48- 49  I2    m       Right ascension, equinox J2000.0 (minutes)
 51- 55  F5.2  s       Right ascension, equinox J2000.0 (seconds)
     57  A1    ---     Declination, equinox J2000.0 (sign)
 58- 59  I2    deg     Declination, equinox J2000.0 (degrees)
 61- 62  I2    arcmin  Declination, equinox J2000.0 (arc minutes)
 64- 67  F4.1  arcsec  Declination, equinox J2000.0 (arc seconds)
 69- 83  A15   ---     OGLE-II ID
 85- 98  A14   ---     MACHO ID
100-104  A5    ---     GCVS ID
106-     A     ---     Other designation
--------------------------------------------------------------------------

Format of the file ecl.dat:
--------------------------------------------------------------------------
 Bytes  Format Units   Description
--------------------------------------------------------------------------
  1- 18  A18   ---     Star's ID in the form OGLE-LMC-ECL-NNNNN
 21- 26  F6.3  mag     Mean out-of-eclipse I-band magnitude
 28- 33  F6.3  mag     Mean out-of-eclipse V-band magnitude
 35- 45  F11.6 days    Orbital period
 48- 56  F10.4 days    Epoch of the primary minimum (HJD-2450000)
 59- 63  F5.3  mag     Depth of the primary minimum
 66- 70  F5.3  mag     Standard deviation of the I-band magnitudes
 73- 77  F5.3  ---     Skewness of the I-band magnitudes
 79- 84  F6.3  ---     Kurtosis of the I-band magnitudes
 86- 91  F6.4  ---     Periodic variability index pvi
--------------------------------------------------------------------------


Finding charts are gzipped Postscript images. The names of the files are in
the form: OGLE-LMC-ECL-NNNNN.ps.gz. The finding charts are 60"x60" subframes
of the I-band reference frames centered on the star. White cross marks the
star. North is up and East to the left.


Any presentation of the scientific analysis or usage of the data from the
catalog of RR Lyrae stars in the Galactic bulge should include the appropriate
reference(s) to OGLE paper(s).