======================================================================= The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. I. Classical Cepheids in the Large Magellanic Cloud I. Soszynski, R. Poleski, A. Udalski, M.K. Szymanski, M. Kubiak, G. Pietrzynski, L. Wyrzykowski, O. Szewczyk, and K. Ulaczyk ======================================================================= soszynsk@astrouw.edu.pl This directory contains the first part of the OGLE-III Catalog of Variable Stars - classical Cepheids in the Large Magellanic Cloud. The directory structure is as follows: README - this file ident.dat - identification of stars cepF.dat - parameters of fundamental-mode (F) Cepheids cep1O.dat - parameters of first-overtone (1O) Cepheids cep2O.dat - parameters of second-overtone (2O) Cepheids cepF1O.dat - parameters of double-mode F/1O Cepheids cep1O2O.dat - parameters of double-mode 1O/2O Cepheids cep1O3O.dat - parameters of double-mode 1O/3O Cepheids cepF1O2O.dat - parameters of triple-mode F/1O/2O Cepheids cep1O2O3O.dat - parameters of triple-mode 1O/2O/3O Cepheids 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 low_ampl/list.dat - parameters of 23 candidates for low-amplitude Cepheids low_ampl/phot/I/ - I-band photometry for the low-amplitude variables low_ampl/phot/V/ - V-band photometry for the low-amplitude variables low_ampl/fcharts/ - finding charts for the low-amplitude variables pap.ps.gz - postscript version of the paper Soszynski et al. (2008), Acta Astron. 58, 163, (arXiv:0808.2210) describing the catalog. Format of file ident.dat: -------------------------------------------------------------------------- Bytes Format Units Description -------------------------------------------------------------------------- 1- 17 A17 --- Cepheid ID in the form OGLE-LMC-CEP-NNNN 20- 27 A8 --- OGLE-III field 29- 34 I6 --- OGLE-III database number 36- 43 A8 --- Mode of pulsation 45- 46 I2 h Right ascension, equinox 2000.0 (hours) 48- 49 I2 m Right ascension, equinox 2000.0 (minutes) 51- 55 F5.2 s Right ascension, equinox 2000.0 (seconds) 57 A1 --- Declination, equinox 2000.0 (sign) 58- 59 I2 deg Declination, equinox 2000.0 (degrees) 61- 62 I2 arcmin Declination, equinox 2000.0 (arc minutes) 64- 67 F4.1 arcsec Declination, equinox 2000.0 (arc seconds) 69- 83 A15 --- OGLE-II ID 85- 98 A14 --- MACHO ID 100-112 A13 --- ASAS ID 114-118 A5 --- GCVS ID 120- A --- Other designation -------------------------------------------------------------------------- Format of files cepF.dat, cep1O.dat, and cep2O.dat: -------------------------------------------------------------------------- Bytes Format Units Description -------------------------------------------------------------------------- 1- 17 A17 --- Cepheid ID in the form OGLE-LMC-CEP-NNNN 20- 25 F6.3 mag Intensity mean I-band magnitude 27- 32 F6.3 mag Intensity mean V-band magnitude 34- 44 F11.7 days Period 46- 54 F9.7 days Uncertainty of period 57- 66 F10.5 days Time of maximum brightness (HJD-2450000) 69- 73 F5.3 mag I-band amplitude (maximum-minimum) 76- 80 F5.3 --- Fourier coefficient R_21 82- 86 F5.3 --- Fourier coefficient phi_21 89- 93 F5.3 --- Fourier coefficient R_31 95- 99 F5.3 --- Fourier coefficient phi_31 -------------------------------------------------------------------------- Format of files cepF1O.dat, cep1O2O.dat, and cep1O3O.dat: -------------------------------------------------------------------------- Bytes Format Units Description -------------------------------------------------------------------------- 1- 17 A17 --- Cepheid ID in the form OGLE-LMC-CEP-NNNN 20- 25 F6.3 mag Intensity mean I-band magnitude 27- 32 F6.3 mag Intensity mean V-band magnitude 34- 44 F11.7 days Longer period 46- 54 F9.7 days Uncertainty of the longer period 57- 66 F10.5 days Time of maximum brightness (HJD-2450000) 69- 73 F5.3 mag I-band amplitude (maximum-minimum) 76- 80 F5.3 --- Fourier coefficient R_21 82- 86 F5.3 --- Fourier coefficient phi_21 89- 93 F5.3 --- Fourier coefficient R_31 95- 99 F5.3 --- Fourier coefficient phi_31 101-110 F10.7 days Shorter period 112-120 F9.7 days Uncertainty of the shorter period 123-132 F10.5 days Time of maximum brightness (HJD-2450000) 135-139 F5.3 mag I-band amplitude (maximum-minimum) 142-146 F5.3 --- Fourier coefficient R_21 148-152 F5.3 --- Fourier coefficient phi_21 155-159 F5.3 --- Fourier coefficient R_31 161-165 F5.3 --- Fourier coefficient phi_31 -------------------------------------------------------------------------- Format of files cepF1O2O.dat and cep1O2O3O.dat: -------------------------------------------------------------------------- Bytes Format Units Description -------------------------------------------------------------------------- 1- 17 A17 --- Cepheid ID in the form OGLE-LMC-CEP-NNNN 20- 25 F6.3 mag Intensity mean I-band magnitude 27- 32 F6.3 mag Intensity mean V-band magnitude 34- 44 F11.7 days Longest period 46- 54 F9.7 days Uncertainty of the longest period 57- 66 F10.5 days Time of maximum brightness (HJD-2450000) 69- 73 F5.3 mag I-band amplitude (maximum-minimum) 76- 80 F5.3 --- Fourier coefficient R_21 82- 86 F5.3 --- Fourier coefficient phi_21 89- 93 F5.3 --- Fourier coefficient R_31 95- 99 F5.3 --- Fourier coefficient phi_31 101-110 F10.7 days Medium period 112-120 F9.7 days Uncertainty of the medium period 123-132 F10.5 days Time of maximum brightness (HJD-2450000) 135-139 F5.3 mag I-band amplitude (maximum-minimum) 142-146 F5.3 --- Fourier coefficient R_21 148-152 F5.3 --- Fourier coefficient phi_21 155-159 F5.3 --- Fourier coefficient R_31 161-165 F5.3 --- Fourier coefficient phi_31 167-176 F10.7 days Shortest period 178-186 F9.7 days Uncertainty of the shortest period 189-198 F10.5 days Time of maximum brightness (HJD-2450000) 201-205 F5.3 mag I-band amplitude (maximum-minimum) 208-212 F5.3 --- Fourier coefficient R_21 214-218 F5.3 --- Fourier coefficient phi_21 221-225 F5.3 --- Fourier coefficient R_31 227-231 F5.3 --- Fourier coefficient phi_31 -------------------------------------------------------------------------- Format of file low_ampl/list.dat -------------------------------------------------------------------------- Bytes Format Units Description -------------------------------------------------------------------------- 1- 8 A8 --- OGLE-III field 10- 15 I6 --- OGLE-III database number 18- 19 I2 h Right ascension, equinox 2000.0 (hours) 21- 22 I2 m Right ascension, equinox 2000.0 (minutes) 24- 28 F5.2 s Right ascension, equinox 2000.0 (seconds) 30 A1 --- Declination, equinox 2000.0 (sign) 31- 32 I2 deg Declination, equinox 2000.0 (degrees) 34- 35 I2 arcmin Declination, equinox 2000.0 (arc minutes) 37- 40 F4.1 arcsec Declination, equinox 2000.0 (arc seconds) 43- 48 F6.3 mag Intensity mean I-band magnitude 50- 55 F6.3 mag Intensity mean V-band magnitude 57- 67 F11.7 days Longer period 69- 77 F9.7 days Uncertainty of the longer period 80- 89 F10.5 days Time of maximum brightness (HJD-2450000) 92- 96 F5.3 mag I-band amplitude (maximum-minimum) -------------------------------------------------------------------------- Format of files with photometry (ID.dat) -------------------------------------------------------------------------- Bytes Format Units Description -------------------------------------------------------------------------- 1- 10 F10.5 days Heliocentric Julian Day - 2450000 12- 17 F6.3 mag Magnitude 19- 23 F5.3 mag Uncertainty of magnitude -------------------------------------------------------------------------- Finding charts are gzipped Postscript images. The names of the files are in the form: ID.ps.gz. The finding charts are 60"x60" subframes of the I-band reference frames centered on the stars. 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 Cepheids from the LMC should include the appropriate reference(s) to OGLE paper(s). Updates: 2009-03-12 Objects from OGLE-LMC-CEP-3362 to OGLE-LMC-CEP-3375 added. Some finding charts corrected.