======================================================================= The OGLE Collection of Variable Stars Delta Scuti Stars toward the Galactic Disk I. Soszynski, P. Pietrukowicz, J. Skowron, A. Udalski, M.K. Szymanski, D.M. Skowron, R. Poleski, S. Kozlowski, P. Mroz, K. Ulaczyk, K. Rybicki, P. Iwanek, M. Wrona, and M. Gromadzki ======================================================================= soszynsk@astrouw.edu.pl, pietruk@astrouw.edu.pl This directory contains the OGLE collection of delta Scuti-type stars toward the Galactic disk. 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_ogle2/I/ - I-band OGLE-II photometry of individual stars (1997-2000) phot_ogle2/V/ - V-band OGLE-II photometry of individual stars (1997-2000) phot_ogle2.tar.gz - gzipped phot_ogle2/ directory phot_ogle3/I/ - I-band OGLE-III photometry of individual stars (2001-2009) phot_ogle3/V/ - V-band OGLE-III photometry of individual stars (2001-2009) phot_ogle3.tar.gz - gzipped phot_ogle3/ directory phot_ogle4/I/ - I-band OGLE-IV photometry of individual stars (2010-2020) phot_ogle4/V/ - V-band OGLE-IV photometry of individual stars (2010-2020) phot_ogle4.tar.gz - gzipped phot_ogle4/ directory fcharts/ - finding charts of individual stars paper.pdf - PDF version of the paper Soszynski et al. (2021), Acta Astron. 71, 189, (arXiv:2111.03072) describing the collection Format of the file ident.dat: -------------------------------------------------------------------------- Bytes Format Units Description -------------------------------------------------------------------------- 1- 17 A17 --- Star's ID 20- 29 A10 --- Type (singlemode, multimode) 32- 33 I2 h Right ascension, equinox J2000.0 (hours) 35- 36 I2 m Right ascension, equinox J2000.0 (minutes) 38- 42 F5.2 s Right ascension, equinox J2000.0 (seconds) 44 A1 --- Declination, equinox J2000.0 (sign) 45- 46 I2 deg Declination, equinox J2000.0 (degrees) 48- 49 I2 arcmin Declination, equinox J2000.0 (arc minutes) 51- 54 F4.1 arcsec Declination, equinox J2000.0 (arc seconds) 57- 72 A16 --- OGLE-IV ID 74- 88 A15 --- OGLE-III ID 90-105 A16 --- OGLE-II ID 107- A --- Other designation (from VSX) -------------------------------------------------------------------------- Format of the file dsct.dat: -------------------------------------------------------------------------- Bytes Format Units Description -------------------------------------------------------------------------- 1- 17 A17 --- Star's ID 20- 25 F6.3 mag Intensity mean I-band magnitude 27- 32 F6.3 mag Intensity mean V-band magnitude 35- 44 F10.8 days Primary period 46- 55 F10.8 days Uncertainty of primary period 58- 67 F10.5 days Time of maximum brightness (HJD-2450000) 70- 74 F5.3 mag I-band amplitude (maximum-minimum) 77- 81 F5.3 --- Fourier coefficient R_21 83- 87 F5.3 --- Fourier coefficient phi_21 90- 94 F5.3 --- Fourier coefficient R_31 96-100 F5.3 --- Fourier coefficient phi_31 103-112 F10.8 days Secondary period (if available) 114-123 F10.8 days Uncertainty of secondary period 126-135 F10.5 days Time of maximum brightness (HJD-2450000) 138-142 F5.3 mag I-band amplitude (maximum-minimum) 145-149 F5.3 --- Fourier coefficient R_21 151-155 F5.3 --- Fourier coefficient phi_21 158-162 F5.3 --- Fourier coefficient R_31 164-168 F5.3 --- Fourier coefficient phi_31 171-180 F10.8 days Tertiary period (if available) 182-191 F10.8 days Uncertainty of tertiary period 194-203 F10.5 days Time of maximum brightness (HJD-2450000) 206-210 F5.3 mag I-band amplitude (maximum-minimum) 213-217 F5.3 --- Fourier coefficient R_21 219-223 F5.3 --- Fourier coefficient phi_21 226-230 F5.3 --- Fourier coefficient R_31 232-236 F5.3 --- Fourier coefficient phi_31 -------------------------------------------------------------------------- Format of the photometry files (OGLE-GD-DSCT-NNNN.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-GD-DSCT-NNNN.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). Updates: 2022-08-20 added 66 delta Scuti stars from the Gaia DR3 catalog (from OGLE-GD-DSCT-7680 to OGLE-GD-DSCT-7745)