======================================================================= The OGLE Collection of Variable Stars Delta Scuti Stars in the Large Magellanic Cloud I. Soszynski, P. Pietrukowicz, A. Udalski, J. Skowron, M.K. Szymanski, R. Poleski, D.M. Skowron, S. Kozlowski, P. Mroz, P. Iwanek, M. Wrona, K. Ulaczyk, K. Rybicki, M. Gromadzki, and M. Mroz ======================================================================= soszynsk@astrouw.edu.pl This directory contains the OGLE collection of delta Scuti-type stars in the fields toward the Large Magellanic Cloud. The directory structure is as follows: README - this file ident.dat - identification of stars dsct.dat - parameters of delta Scuti stars remarks.txt - remarks on selected objects phot/I/ - I-band OGLE-IV photometry of individual objects phot/V/ - V-band OGLE-IV photometry of individual objects phot.tar.gz - gzipped phot/ directory fcharts/ - finding charts of individual stars paper.pdf - PDF version of the paper Soszynski et al. (2023), Acta Astron. 73, 105, (arXiv:2309.15147) describing the collection Format of the file ident.dat: -------------------------------------------------------------------------- Bytes Format Units Description -------------------------------------------------------------------------- 1- 19 A19 --- Star's ID 22- 31 A10 --- Type (singlemode, multimode) 34- 35 I2 h Right ascension, equinox J2000.0 (hours) 37- 38 I2 m Right ascension, equinox J2000.0 (minutes) 40- 44 F5.2 s Right ascension, equinox J2000.0 (seconds) 46 A1 --- Declination, equinox J2000.0 (sign) 47- 48 I2 deg Declination, equinox J2000.0 (degrees) 50- 51 I2 arcmin Declination, equinox J2000.0 (arc minutes) 53- 56 F4.1 arcsec Declination, equinox J2000.0 (arc seconds) 59- 74 A16 --- OGLE-IV ID 76- 90 A15 --- OGLE-III ID 92-107 A16 --- OGLE-II ID 109- A --- Other designation (from VSX) -------------------------------------------------------------------------- Format of the file dsct.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 Primary period 48- 57 F10.8 days Uncertainty of primary 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 Secondary period (if available) 116-125 F10.8 days Uncertainty of secondary 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_31 173-182 F10.8 days Tertiary period (if available) 184-193 F10.8 days Uncertainty of tertiary period 196-205 F10.5 days Time of maximum brightness (HJD-2450000) 208-212 F5.3 mag I-band amplitude (maximum-minimum) 215-219 F5.3 --- Fourier coefficient R_21 221-225 F5.3 --- Fourier coefficient phi_21 228-232 F5.3 --- Fourier coefficient R_31 234-238 F5.3 --- Fourier coefficient phi_31 -------------------------------------------------------------------------- Format of the photometry files (OGLE-LMC-DSCT-NNNNN.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: OGLE-LMC-DSCT-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 collection of delta Scuti-type stars should include the appropriate reference(s) to OGLE paper(s).