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This standardized document follows the rules of the Standard Description for Astronomical Catalogues. For those having to work on this catalogue using FORTRAN programs, this ReadMe file can be transformed into a f77-compliant program which reads the files making up this catalogue, in two versions: either a f77 program loading whole files into arrays, or a f77-program reading each data file line by line.

J/AJ/123/855    Magellanic Clouds Photometric Survey: the SMC  (Zaritsky+, 2002)
================================================================================
The Magellanic Clouds Photometric Survey:
the Small Magellanic Cloud stellar catalog and extinction map.
    Zaritsky D., Harris J., Thompson I.B., Grebel E.K., Massey P.
   <Astron. J. 123, 855 (2002)>
   =2002AJ....123..855Z
================================================================================
ADC_Keywords: Magellanic Clouds ; Photometry, UBVRI ; Photometry, infrared

Keywords: catalogs - dust, extinction - galaxies: photometry -
          galaxies: stellar content - Magellanic Clouds

Abstract:
    We present our catalog of U, B, V, and I stellar photometry of the
    central 18°2 area of the Small Magellanic Cloud. We combine our
    data with the Two Micron All Sky Survey (2MASS) and Deep Near-Infrared
    Southern Sky Survey (DENIS) catalogs to provide, when available, U
    through Ks data for stars. Internal and external astrometric and
    photometric tests using existing optical photometry (U, B, and V from
    Massey's (ApJS, in press) bright star catalog; B, V, and I from the
    microlensing database of OGLE; and I from the near-infrared sky survey
    DENIS) are used to determine the observational uncertainties and
    identify systematic errors. We fit stellar atmosphere models to the
    optical data to check the consistency of the photometry for individual
    stars across the passbands and to estimate the line-of-sight
    extinction. Finally, we use the estimated line-of-sight extinctions to
    produce an extinction map across the Small Magellanic Cloud, and we
    investigate the nature of extinction as a function of stellar
    population.

File Summary:

       FileName      Lrecl  Records   Explanations

× ReadMe            80        .   This file
× table1.dat       113  5156057   MCPS Catalog (Small Magellanic Cloud)


See also:
       B/2mass : The 2MASS database (IPAC/UMass, 2000)
       B/denis : The DENIS database (Epchtein+, 1999)
       II/228  : DENIS Catalogue toward Magellanic Clouds (DCMC) (Cioni+ 2000)
 J/A+AS/135/133 : First DENIS I-band extragalactic catalog (Vauglin+ 1999)
   J/AcA/48/147 : OGLE SMC BVI photometry (Udalski+ 1998)
   J/AcA/48/563 : OGLE SMC eclipsing binaries BVI photometry (Udalski+ 1998)
   J/AcA/49/437 : BVI photometry of OGLE SMC Cepheids (Udalski+, 1999)
   J/AcA/49/543 : OGLE LMC + SMC Cepheids VI photometry (Pietrzynski+, 1999)


Byte-by-byte Description of file: table1.dat

   Bytes Format Units   Label     Explanations

   1-  9  F9.6  h       RAhr      Hour of Right Ascension (J2000)
  11- 19  F9.5  deg     DEdeg     Decimal degree of Declination (J2000)
  21- 26  F6.3  mag     Umag      ?=0.000 The U band magnitude (1)
  28- 32  F5.3  mag     e_Umag    The 1{sigma} error in Umag
  34- 39  F6.3  mag     Bmag      The B band magnitude
  41- 45  F5.3  mag     e_Bmag    The 1{sigma} error in Bmag
  47- 52  F6.3  mag     Vmag      The V band magnitude
  54- 58  F5.3  mag     e_Vmag    The 1{sigma} error in Vmag
  60- 65  F6.3  mag     Imag      The I band magnitude
  67- 71  F5.3  mag     e_Imag    The 1{sigma} error in Imag magnitude
  73- 74  I2    ---     Flag      Quality flag (2)
  76- 81  F6.3  mag     Jmag      ?=0.000 The J band magnitude (1)
  83- 87  F5.3  mag     e_Jmag    ?=0.000 The 1{sigma} error in Jmag
  89- 94  F6.3  mag     Hmag      ?=0.000 The H band magnitude (1)
  96-100  F5.3  mag     e_Hmag    ?=0.000 The 1{sigma} error in Hmag
 102-107  F6.3  mag     K'mag     ?=0.000 The K' band magnitude (1)
 109-113  F5.3  mag     e_K'mag   ?=0.000 The 1{sigma} error in Kmag

Note (1): 0.00 if star not detected.

Note (2): The unique sum of several flags given below.
    0 = no flag;
    1 = star for which we replaced photometry with that from Massey's
         catalog (Massey P., 2001, ApJS, in press);
    2 = star for which we replaced photometry with that from OGLE;
   10 = star with a successful stellar atmosphere model ({chi}2<3) fit;
   20 = star with an unsuccessful stellar atmosphere model fit.


History:
    From electronic version of the journal
================================================================================
(End)                    Greg Schwarz [AAS], Patricia Bauer [CDS]    07-Mar-2002