ACDS V10.0 - Detailed Description of J/AcA/52/217

ACDS V10.0 - Sun Jan 19 02:46:36 CET 2025

| # Detailed Description of J/AcA/52/217 : OGLE II. VI photometry of Galactic Bulge (Udalski+, 2002) |

Note : this is the description file of the original catalog. This HTML page corresponds well to the original description, but some minor changes in the format may have been introduced in the FITS output files in order to allow for arithmetic operations on quantities such as coordinates and times. h:m:s and d:m:s units are normally converted into degrees, and YYYY-MM-DD into julian days.
Similarly, some slight changes may have been introduced in the units; the value given in the HTML files supersedes the value indicated in the ReadMe file for this catalogue.

    J/AcA/52/217    OGLE II. VI photometry of Galactic Bulge      (Udalski+, 2002)
    ================================================================================
    The Optical Gravitational Lensing Experiment. BVI maps of dense stellar regions.
    III. The Galactic Bulge.
         Udalski A., Szymanski M., Kubiak M., Pietrzynski G., Soszynski I.,
         Wozniak P., Zebrun K., Szewczyk O., Wyrzykowski L.
        <Acta Astron., 52, 217 (2002)>
        =2002AcA....52..217U
    ================================================================================
    ADC_Keywords: Surveys ; Photometry, CCD

    Keywords: Galaxy: bulge - surveys - catalogs - techniques: photometric

    Abstract:
        We present the VI photometric maps of the Galactic bulge. They contain
        VI photometry and astrometry of about 30 million stars from 49 fields
        of 0.225 square degree each in the Galactic center region. The data
        were collected during the second phase of the OGLE microlensing
        project. We discuss the accuracy of data and present color-magnitude
        diagrams of selected fields observed by OGLE in the Galactic bulge.
        The VI maps of the Galactic bulge are accessible electronically for
        the astronomical community from the OGLE Internet archive

    File Summary:

           FileName      Lrecl  Records   Explanations

    ×                   80        .   This file
    × ReadMe            80        .   This file
    × fields.dat        56       49   Bulge fields position
    × bul_sc/*          93       49   VI photometry of BUL-SC fields

    See also:
        ftp://sirius.astrouw.edu.pl/ogle : OGLE DataBase
              I/244  : OGLE General Catalog of Stars. I. (Szymanski+ 1996)
              II/213 : OGLE Galactic Bulge periodic variables (Udalski+ 1996)
      J/A+A/371/986  : OGLE database: monoperiodic pulsating stars (Poretti 2001)
      J/A+AS/112/407 : Variable Stars in Sculptor dwarf galaxy (Kaluzny+, 1995)
      J/A+AS/125/343 : OGLE RR Lyr stars in omega Cen (Kaluzny+ 1997)
     J/MNRAS/327/601 : OGLE-II High proper motion stars (Eyer+, 2001)
        J/AcA/46/389 : OGLE miscellaneous variable stars (Olech 1996)
        J/AcA/48/113 : OGLE RR Lyrae VI photometry (Udalski, 1998)
        J/AcA/48/147 : OGLE SMC BVI photometry (Udalski+ 1998)
        J/AcA/48/175 : OGLE SMC clusters (Pietrzynski+ 1998)
        J/AcA/48/289 : OGLE-I long-period & non-periodic variables (Zebrun 1998)
        J/AcA/49/223 : BVI photometry of OGLE LMC Cepheids (Udalski+, 1999)
        J/AcA/49/319 : OGLE UBVI phot. in Baade's Windowother/ (Paczynski+, 1999)
        J/AcA/49/437 : BVI photometry of OGLE SMC Cepheids (Udalski+, 1999)
        J/AcA/49/521 : OGLE LMC star clusters BVI photometry (Pietrzynski+, 1999)
        J/AcA/49/543 : OGLE LMC + SMC Cepheids VI photometry (Pietrzynski+, 1999)
        J/AcA/50/337 : OGLE LMC star clusters (Pietrzynski+, 2000)
        J/AcA/50/421 : OGLE-II DIA BUL_SC1 field (Wozniak, 2000)
        J/AcA/51/175 : OGLE-II DIA microlensing events (Wozniak+, 2001)
        J/AcA/51/221 : OGLE-II. Cepheids in IC 1613 (Udalski+, 2001)
        J/AcA/52/143 : OGLE high proper motion stars towards MC (Soszynski+ 2002)

    Byte-by-byte Description of file:  fields.dat

       Bytes Format Units   Label     Explanations

       1-  8  A8    ---     Field     Field name (bul_scNN)
      11- 12  I2    h       RAh       Right ascension (J2000)
          13  A1    ---     ---       [:]
      14- 15  I2    min     RAm       Right ascension (J2000)
          16  A1    ---     ---       [:]
      17- 20  F4.1  s       RAs       Right ascension (J2000)
          23  A1    ---     DE-       Declination sign (J2000)
      24- 25  I2    deg     DEd       Declination (J2000)
          26  A1    ---     ---       [:]
      27- 28  I2    arcmin  DEm       Declination (J2000)
          29  A1    ---     ---       [:]
      30- 31  I2    arcsec  DEs       Declination (J2000)
      35- 40  F6.2  deg     GLON      [-12/11] Galactic longitude
      43- 47  F5.2  deg     GLAT      Galactic latitude
      50- 56  I7    ---     N         Number of stars in the field

    Byte-by-byte Description of file:  bul_sc/*

       Bytes Format Units   Label     Explanations

       1-  6  I6    ---     OGLE      Number in the database, in the cluster field
       8-  9  I2    h       RAh       Right ascension (J2000)
          10  A1    ---     ---       [:]
      11- 12  I2    min     RAm       Right ascension (J2000)
          13  A1    ---     ---       [:]
      14- 18  F5.2  s       RAs       Right ascension (J2000)
          20  A1    ---     DE-       Declination sign (J2000)
      21- 22  I2    deg     DEd       Declination (J2000)
          23  A1    ---     ---       [:]
      24- 25  I2    arcmin  DEm       Declination (J2000)
          26  A1    ---     ---       [:]
      27- 30  F4.1  arcsec  DEs       Declination (J2000)
      32- 38  F7.2  pix     Xpix      pixel coordinates in the I-band template image
      40- 46  F7.2  pix     Ypix      pixel coordinates in the I-band template image
      48- 53  F6.3  mag     Vmag      ?=99.999 V magnitude (1)
      55- 60  F6.3  mag     V-I       ?=9.999 V-I colour index (1)
      62- 67  F6.3  mag     Imag      ?=99.999 I magnitude (1)
      70- 71  I2    ---     o_Vmag    Number of "good" measurements in V band
      73- 74  I2    ---     Vbad      Number of "bad" (removed with 5 sigma
                                       rejection algorithm) measurements in V band
      76- 80  F5.3  mag     e_Vmag    ?=9.999 Standard deviation of "good"
                                        measurements in V band
      82- 84  I3    ---     o_Imag    Number of "good" measurements in I band
      86- 87  I2    ---     Ibad      Number of "bad" (removed with 5 sigma
                                       rejection algorithm) measurements in I band
      89- 93  F5.3  mag     e_Imag    ?=9.999 Standard deviation of "good"
                                        measurements in I band

    Note (1): "Magic" numbers: 99.999 for magnitude and 9.999 for color and
               standard deviation denote "no measurement".

    Nomenclature Notes:
        Stars identified as OGLE BUL-SCNN NNNNNN in Simbad

    History:
        Copied at ftp://sirius.astrouw.edu.pl/ogle/ogle2/maps/bulge
    ================================================================================
    (End)                                        Patricia Bauer [CDS]    08-Sep-2003