J/AcA/48/455  Globular Clusters in M31 and M33          (Mochejska+, 1998)
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Identification and photometry of globular clusters in M31 and M33 galaxies
    Mochejska  B.J., Kaluzny J., Krockenberger M., Sasselov D.D., Stanek K.Z.
   <Acta Astron., 48, 455 (1998)>             
   =1998AcA....48..455M
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ADC_Keywords: Clusters, globular ; Photometry, CCD
Keywords: galaxies: individual: M31, M33 - catalogs

Abstract:
    We have used the data from the DIRECT project to search for new
    globular cluster candidates in the M31 and M33 galaxies. We have found
    67 new objects in M31 and 35 in M33 and confirmed 38 and 16 previously
    discovered ones. A VI and BVI photometry has been obtained for all
    clusters in M31 and M33, respectively. Luminosity functions have been
    constructed for the clusters in each galaxy and compared with that of
    the Milky Way.

File Summary:
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  FileName      Lrecl  Records   Explanations
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ReadMe             80        .   This file
m31gc.dat          72      110   Globular cluster candidates in the M31 galaxy
m33gc.dat          71       55   Globular cluster candidates in the M33 galaxy
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See also:
  J/AJ/115/1894 : M31A eclipsing binaries and Cepheids (Stanek+ 1998)
  J/AJ/115/1016 : M31B eclipsing binaries and Cepheids (Kaluzny+ 1998)
  J/AJ/117/2810 : M31C eclipsing binaries and Cepheids (Stanek+, 1999)
  J/AJ/118/346  : M31D eclipsing binaries and Cepheids (Kaluzny+ 1999)
  J/AJ/118/2211 : M31F eclipsing binaries and Cepheids (Mochejska+ 1999)
  J/AJ/121/861  : BVI photometry of central part of M33 (Macri+, 2001)
  J/AJ/121/870  : Variables in the central part of M33 BVI phot. (Macri+, 2001)

Byte-by-byte Description of file: m31gc.dat
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   Bytes Format Units   Label     Explanations
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   1-  3  I3    ---     Seq       Sequential number
       4  A1    ---   n_Seq       [b] When second set of data for the object
   5-  6  I2    h       RAh       Right ascension (2000)
   8-  9  I2    min     RAm       Right ascension (2000)
  11- 15  F5.2  s       RAs       Right ascension (2000)
      17  A1    ---     DE-       Declination sign (2000)
  18- 19  I2    deg     DEd       Declination (2000)
  21- 22  I2    arcmin  DEm       Declination (2000)
  24- 27  F4.1  arcsec  DEs       Declination (2000)
  29- 33  F5.2  mag     Vmag      V magnitude
      34  A1    ---   u_Vmag      Uncertainty flag on Vmag
  36- 40  F5.2  mag     Imag      ? I magnitude
      41  A1    ---   u_Imag      Uncertainty flag on Imag
  43- 47  F5.2  mag     V-I       ? V-I colour index
      48  A1    ---   u_V-I       Uncertainty flag on V-I
      50  A1    ---     Class     [A-D] Object class on a scale from A to D (G1)
      52  A1    ---     Field     [A-D] Field in which the object is located
  54- 57  A4    ---     SKHB      Sargert et al. (1977AJ.....82..947S) 
                                   designation GNNN (SKHB NNN in Simbad)
  59- 63  A5    ---     Bol       Battistini et al. (1987A&AS...67..447B)
                                   designation BoNNN (Bol NNN in Simbad)
  65- 68  A4    ---     Vet       Vetesnik (1962BAICz..13..180V) 
                                   designation VNNN ([V62] NNN> (Nos 1-140)
                                    or [SN45] for (Nos 200-300) in simbad)
  70- 72  A3    ---     [CCS85]   Crampton et al. (1985ApJ...288..494C) 
                                   designation DNN ([CCS85] NNN in simbad)
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Byte-by-byte Description of file: m33gc.dat
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   Bytes Format Units   Label     Explanations
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   1-  2  I2    ---     Seq       ? Sequential number
   4-  5  I2    h       RAh       Right ascension (2000)
   7-  8  I2    min     RAm       Right ascension (2000)
  10- 14  F5.2  s       RAs       Right ascension (2000)
      16  A1    ---     DE-       Declination sign (2000)
  17- 18  I2    deg     DEd       Declination (2000)
  20- 21  I2    arcmin  DEm       Declination (2000)
  23- 27  F5.2  arcsec  DEs       Declination (2000)
  29- 33  F5.2  mag     Bmag      B magnitude
      34  A1    ---   u_Bmag      Uncertainty flag on Bmag
  36- 40  F5.2  mag     Vmag      V magnitude
      41  A1    ---   u_Vmag      Uncertainty flag on Vmag
  43- 47  F5.2  mag     Imag      ? I magnitude
      48  A1    ---   u_Imag      Uncertainty flag on Imag
  50- 54  F5.2  mag     B-V       ? B-V colour index
      55  A1    ---   u_B-V       Uncertainty flag on B-V
  57- 61  F5.2  mag     V-I       ? V-I colour index
      62  A1    ---   u_V-I       Uncertainty flag on V-I
      64  A1    ---     Class     [A-D] Object class on a scale from A to D (G1)
      66  A1    ---     Field     [A-D] Field in which the object is located
  68- 71  A4    ---     [CS82]    Christian & Schommer (1982ApJS...49..405C) 
                                   designation HNN or UNNN 
                                   ([CS82] HNN or [CS82] UNNN in simbad)
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Global Notes:
Note (G1): Probability Classes for globular clusters:
   A: very high probability globular cluster candidates, exhibiting
      spherical structure and a substantially larger FWHM than for a
      nearby star. 
   B: high probability globular cluster candidates. Objects in this 
      category usually exhibited small departures from spherical shape 
      not associated with the object itself, caused by nearby faint
      stars, brightness fluctuations of the galaxy background, etc.
   C: objects that might be globular clusters. Such objects were usually
      faint and roughly spherical. Due to their faintness, their radial
      profiles showed substantial background variations. Thus it was
      hard to discern whether they were globular clusters or blended 
      stars.
   D: Objects that are probably not globular clusters. Objects in this
      category met the above criteria rather poorly, usually because of
      low S/N ratio. Objects from other catalogs which were found 
      unlikely to be globular clusters were also put into this category.
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History: Copied at cfa-ftp.harvard.edu. in pub/kstanek/DIRECT
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(End)                                          Patricia Bauer [CDS]  01-Apr-1999
