=======================================================================
      Eclipsing Binary Stars in the OGLE-III Galactic Disk Fields

    P. Pietrukowicz, P. Mroz, I. Soszynski, A. Udalski, R. Poleski,
      M.K. Szymanski, M. Kubiak, G. Pietrzynski, L. Wyrzykowski,
               K. Ulaczyk, S. Kozlowski, and J. Skowron

=======================================================================
pietruk@astrouw.edu.pl


This directory contains details on eclipsing binary stars identified
in 21 OGLE-III Galactic disk fields.

The directory structure is as follows:

README            - this file

ident.dat         - identification of stars

ecl.dat           - parameters of eclipsing binary stars

double.dat        - parameters of double binaries

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

pap.pdf           - PDF version of the paper Pietrukowicz et al. (2013),
                    Acta Astron., 63, 115, (arXiv:1306.6324) describing
                    this result


Format of the file ident.dat:
--------------------------------------------------------------------------
 Bytes  Format Units   Description
--------------------------------------------------------------------------
  1- 17  A17   ---     Star's ID in the form OGLE-GD-ECL-NNNNN
 20- 27  A8    ---     OGLE-III field
 29- 34  I6    ---     OGLE-III database number
 36- 42  A7    ---     Subtype of the eclipsing variability
 44- 45  I2    h       Right ascension, equinox J2000.0 (hours)
 47- 48  I2    m       Right ascension, equinox J2000.0 (minutes)
 50- 54  F5.2  s       Right ascension, equinox J2000.0 (seconds)
     56  A1    ---     Declination, equinox J2000.0 (sign)
 57- 58  I2    deg     Declination, equinox J2000.0 (degrees)
 60- 61  I2    arcmin  Declination, equinox J2000.0 (arc minutes)
 63- 66  F4.1  arcsec  Declination, equinox J2000.0 (arc seconds)
 68- 78  A11   ---     OGLE transit ID
 80- 87  A8    ---     VLT/VIMOS variable's name
 89-103  A15   ---     OGLE-II variable's ID
--------------------------------------------------------------------------

Format of the file ecl.dat:
--------------------------------------------------------------------------
 Bytes  Format Units   Description
--------------------------------------------------------------------------
  1- 17  A17   ---     Star's ID in the form OGLE-GD-ECL-NNNNN
 20- 25  F6.3  mag     Out-of-eclipse I-band magnitude
 27- 32  F6.3  mag     Mean V-I color
 35- 39  F5.3  mag     Depth of the primary minimum in the I band
 42- 54  F13.8 days    Orbital period
 56- 65  F10.8 days    Uncertainty of the orbital period
 67- 76  F10.5 days    Epoch of the primary minimum (HJD-2450000)
--------------------------------------------------------------------------

Format of the file double.dat:
--------------------------------------------------------------------------
 Bytes  Format Units   Description
--------------------------------------------------------------------------
  1- 18  A18   ---     Component's name in the form OGLE-GD-ECL-NNNNNc
 20- 22  A3    ---     Subtype of the eclipsing variability
 24- 29  F6.3  mag     Out-of-eclipse I-band magnitude
 32- 36  F5.3  mag     Depth of the primary minimum in the I band
 39- 51  F13.8 days    Orbital period of the component
 53- 62  F10.8 days    Uncertainty of the orbital period
 64- 73  F10.5 days    Epoch of the primary minimum (HJD-2450000)
--------------------------------------------------------------------------


Finding charts are gzipped Postscript images. The names of the files are
in the form: OGLE-GD-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 eclipsing binary stars in the OGLE-III Galactic disk area
should include the appropriate reference(s) to OGLE paper(s).