This directory contains photometric data of IC1613 collected during the
OGLE-II microlensing survey and published in the paper:

"The Optical Gravitational Lensing Experiment. Cepheids in the Galaxy
IC1613: No Dependence of the Period-Luminosity Relation on Metallicity" 

by

Udalski, A., Wyrzykowski, L., Pietrzynski, G., Szewczyk, O., Szymanski,
M., Kubiak, M., Soszynski, I., and Zebrun, K. (2001)   Acta Astronomica,
51, p. xxx


The directory structure is as follows:

README                -- this file


subdirectory paper/   -- Postscript version of the paper.

cep.txt               -- Table 1 from the paper, containing basic data for
                         detected Cepheids in IC1613


subdirectory phot/    --  photometric data in V and I-bands (subdirectory V/ and 
                          I/, respectively) of detected Cepheids. Each file contains
                          three columns: HJD, mag, error.

phot.tar              --  tar archive containing entire phot/ directory

subdirectory fcharts/ --  finding charts for Cepheids from IC1613. Each PS image is
                          60"x60" I-band subframe centered on the Cepheid.
                          Nort is up and East to the left.  

fcharts.tar           -- tar archive containing entire fchart/ directory



ic1613.vi.gz          -- Mean photometry of all stars in the field.
                         The columns contain: ID number, (X, Y) on the V-band template,
                         (X, Y) on the I-band template, V, V-I, I, (N_good, N_bad, sigma)
                         for V-band, (N_good, N_bad, sigma) for I-band,
                         Right Ascension, Declination (J2000)


Magic numbers 9.999 and 99.999 in Tables mean "No data".