Index of /ogle/ogle1/contact_binaries/EWs
OGLE-I Contact Binary Stars Catalog: EWa type stars
This directory contains:
README - this file
EWa.all - table with catalog data for all EWa contact binaries found
in OGLE-I data. See below for catalog format details
EWa.new - table with catalog data for newly found EWa contact binaries
EWa.old - table with catalog data for EWa contact binaries present
in the first catalog of OGLE-I variable stars
fcharts/ - subdirectory with finding charts of all EWa type binaries:
FIELD_STARNO.fts.gz and FIELD_STARNO.ps.gz files contain
60"x60" subframe centered on the star in FITS and Postscript
format, respectively (gzipped)
phot/ - subdirectory with photometry of all EWa type binaries:
FIELD_STARNO_I.dat and FIELD_STARNO_V.dat files contain
calibrated photometry (Julian Date, magnitude and its error)
in I and V filters, respectively. Some stars lack V data.
Catalog data table contains following data. Stars are sorted by period.
Column Description
1 OGLE-I field name
2 Star no. in the OGLE-I database
3 R.A. (J2000)
4 Dec. (J2000)
5 calibrated I mag
6 calibrated V-I color (9.99 if no data in V available for a star;
I magnitude for these stars was calibrated with typical value of V-I=1.0)
7 period in days
8 type classification
additionally, EWa.old file contains extra column:
9 cross identification with first edition of OGLE-I variable stars catalog
REMARK: One EWs star survived all checks and entered the catalog twice,
with two different period values:
BW7 66654