This directory contains the catalog of eclipsing binary stars detected
during the OGLE-II microlensing search in the Small Magellanic Cloud.

The directory structure is as follows:

README             -- this file

ecl_detached.tab   -- list of 153 well detached binary systems well
                      suited for distance determination. Please note that this
                      a subjectively selected sample of the brightest  objects 
                      with good photometry. The columns are:
                      Field, ID number, I mag at maximum, full width of
                      the secondary eclipse at half depth (fraction of
                      period), depth of the secondary eclipse (magnitude).

subdirectory paper  -- Paper: "The Optical Gravitational Lensing Experiment.
                       Eclipsing Binary Stars in the Small Magellanic Cloud"
                       A. Udalski, I. Soszynski,  M. Szymanski, M. Kubiak,
                       G. Pietrzynski, P. Wozniak, and K. Zebrun, 
                       Acta Astron. 1998, 48, 563
                       describing the catalog (Postscript version).

subdirectory smc_sc1  -- the catalog of eclipsing stars from SMC_SC1 field.

subdirectory smc_sc2  -- the catalog of eclipsing stars from SMC_SC2 field.

subdirectory smc_sc3  -- the catalog of eclipsing stars from SMC_SC3 field.

subdirectory smc_sc4  -- the catalog of eclipsing stars from SMC_SC4 field.

subdirectory smc_sc5  -- the catalog of eclipsing stars from SMC_SC5 field.

subdirectory smc_sc6  -- the catalog of eclipsing stars from SMC_SC6 field.

subdirectory smc_sc7  -- the catalog of eclipsing stars from SMC_SC7 field.

subdirectory smc_sc8  -- the catalog of eclipsing stars from SMC_SC8 field.

subdirectory smc_sc9  -- the catalog of eclipsing stars from SMC_SC9 field.

subdirectory smc_sc10  -- the catalog of eclipsing stars from SMC_SC10 field.

subdirectory smc_sc11  -- the catalog of eclipsing stars from SMC_SC11 field.



Catalog of each field has the following structure (e.g. catalog of
SMC_SC1 field):

subdirectory fcharts  -- finding charts of individual objects; gzipped  
                         Postscript version. The file name is: object_id.ps.gz

subdirectory phot     -- photometry of individual objects:

    subdirectory  I   -- photometry in the I-band
    subdirectory  V   -- photometry in the V-band
    subdirectory  B   -- photometry in the B-band

                         The file name is object_id.dat.gz in each of these
                         subdirectories. Each file contains 3 columns:
                         Hel JD, magnitude, error.

cat_smc_sc1.ps.gz  -- Postscript version of the catalog of eclipsing
                      stars of the field SMC_SC1.

smc_sc1.tab        -- Table with basic data for eclipsing stars in the field
                      SMC_SC1. The columns are:
                      ID number, RA(2000), DEC(2000), P(days), T_0 (HJD), 
                      I, B-V, V-I. T_0 corresponds to deeper minimum,
                      magnitude and colors are for maximum of brightness.
                      Magic number 9.999 in color columns means "no data". 

phot.tar           -- tar file of the entire 'phot' subdirectory

fcharts.tar        -- tar file of the entire 'fcharts' subdirectory.


Any presentation of the scientific analysis or usage of the data from
the catalog of eclipsing stars in the SMC should cite the appropriate
OGLE paper(s).