======================================================================= Over 78000 RR Lyrae Stars in the OGLE Galactic Disk Fields I. Soszynski, A. Udalski, M. K. Szymanski, P. Pietrukowicz, P. Mroz, J. Skowron, S. Kozlowski, R. Poleski, D. Skowron, K. Ulaczyk, K. Rybicki, P. Iwanek, M. Wrona, M. Gromadzki ======================================================================= soszynsk@astrouw.edu.pl This directory contains the OGLE catalog of RR Lyrae stars identified in the fields toward the Galactic bulge. The directory structure is as follows: README - this file ident.dat - identification of stars RRab.dat - parameters of RRab stars RRc.dat - parameters of RRc stars RRd.dat - parameters of RRd 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 of individual objects remarks.txt - remarks on selected objects gc.dat - candidates for objects located in globular clusters pap.pdf - PDF version of the paper Soszynski et al. (2019), Acta Astron. 69, 321, (arXiv:2001.00025) describing the catalog. Format of the file ident.dat: -------------------------------------------------------------------------- Bytes Format Units Description -------------------------------------------------------------------------- 1- 19 A19 --- Star's ID 22- 25 A4 --- Subtype of RR Lyr star (RRab, RRc, RRd, aRRd) 28- 29 I2 h Right ascension, equinox J2000.0 (hours) 31- 32 I2 m Right ascension, equinox J2000.0 (minutes) 34- 38 F5.2 s Right ascension, equinox J2000.0 (seconds) 40 A1 --- Declination, equinox J2000.0 (sign) 41- 42 I2 deg Declination, equinox J2000.0 (degrees) 44- 45 I2 arcmin Declination, equinox J2000.0 (arc minutes) 47- 50 F4.1 arcsec Declination, equinox J2000.0 (arc seconds) 53- 68 A16 --- OGLE-IV ID 70- 84 A15 --- OGLE-III ID 86-100 A15 --- OGLE-II ID 102- A --- Other designation (from VSX) -------------------------------------------------------------------------- Format of the files RRab.dat and RRc.dat: -------------------------------------------------------------------------- Bytes Format Units Description -------------------------------------------------------------------------- 1- 19 A19 --- Star's ID 22- 27 F6.3 mag Intensity mean I-band magnitude 29- 34 F6.3 mag Intensity mean V-band magnitude 37- 46 F10.8 days Period 48- 57 F10.8 days Uncertainty of period 60- 69 F10.5 days Time of maximum brightness (HJD-2450000) 72- 76 F5.3 mag I-band amplitude (maximum-minimum) 79- 83 F5.3 --- Fourier coefficient R_21 85- 89 F5.3 --- Fourier coefficient phi_21 92- 96 F5.3 --- Fourier coefficient R_31 98-102 F5.3 --- Fourier coefficient phi_31 -------------------------------------------------------------------------- Format of the files RRd.dat and aRRd.dat: -------------------------------------------------------------------------- Bytes Format Units Description -------------------------------------------------------------------------- 1- 19 A19 --- Star's ID 22- 27 F6.3 mag Intensity mean I-band magnitude 29- 34 F6.3 mag Intensity mean V-band magnitude 37- 46 F10.8 days First-overtone period 48- 57 F10.8 days Uncertainty of first-overtone period 60- 69 F10.5 days Time of maximum brightness (HJD-2450000) 72- 76 F5.3 mag I-band amplitude (maximum-minimum) 79- 83 F5.3 --- Fourier coefficient R_21 85- 89 F5.3 --- Fourier coefficient phi_21 92- 96 F5.3 --- Fourier coefficient R_31 98-102 F5.3 --- Fourier coefficient phi_31 105-114 F10.8 days Fundamental-mode period 116-125 F10.8 days Uncertainty of fundamental-mode period 128-137 F10.5 days Time of maximum brightness (HJD-2450000) 140-144 F5.3 mag I-band amplitude (maximum-minimum) 147-151 F5.3 --- Fourier coefficient R_21 153-157 F5.3 --- Fourier coefficient phi_21 160-164 F5.3 --- Fourier coefficient R_31 166-170 F5.3 --- Fourier coefficient phi_31 -------------------------------------------------------------------------- Finding charts are gzipped Postscript images. The names of the files are in the form: OGLE-BLG-RRLYR-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). 2020-07-21 OGLE-GD-RRLYR-03220 reclassified as a type II Cepheid (OGLE-GD-T2CEP-0050) and removed from the list. 3 additional RR Lyrae stars (from OGLE-GD-RRLYR-10203 to OGLE-GD-RRLYR-10205). 2022-08-20 1454 additional RR Lyrae stars from the Gaia DR3 catalog and other sources (from OGLE-GD-RRLYR-10206 to OGLE-GD-RRLYR-11659)