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J/MNRAS/239/459     Photographic study of A2197 and A2199     (Dixon+, 1989)
The clusters of galaxies A2197 and A2199.
    Dixon K.L., Godwin J.G., Peach J.V.
   <Mon. Not. R. Astron. Soc., 239, 459-478 (1989)>
   =1989MNRAS.239..459D
ADC_Keywords: Clusters, galaxy ; Galaxy catalogs ; Galaxies, photometry ;
              Photometry, photographic

Abstract:
    Radii, b26 magnitudes, (b-r) colors, position angles, and
    ellipticities have been measured on the plates of Palomar 48-inch
    Schmidt telescope taken in May 1976, for 6925 galaxies in a 5-sq deg
    field enclosing the close pair of rich clusters A2197 and A2199.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
a2197.dat         66     1560   Data for Abell 2197
a2199.dat         66     5365   Data for Abell 2199


See also:
   VII/42 : GMP catalogue: galaxies in the Coma cluster (Godwin+ 1983)
   J/MNRAS/267/431 : Photographic study of A3558 (Metcalfe+, 1994)
   J/AJ/117/75 : BR photometry in Coma, A2199 + AWM5 clusters (Conselice+, 1999)


Byte-by-byte Description of file: a2197.dat a2199.dat

   Bytes Format Units   Label     Explanations

   1-  9  A9    ---     ID        Identification of the galaxy (1)
  12- 15  I4    arcsec  Xpos      Position on the plate from an arbitrary origin
  17- 20  I4    arcsec  Ypos      Position on the plate from an arbitrary origin
  22- 23  I2    h       RAh       Right Ascension B1950 (hours)
  24- 25  I2    min     RAm       Right Ascension B1950 (minutes)
  26- 29  F4.1  s       RAs       Right Ascension B1950 (seconds)
      30  A1    ---     DE-       Declination B1950 (sign)
  31- 32  I2    deg     DEd       Declination B1950 (degrees)
  33- 34  I2    arcmin  DEm       Declination B1950 (minutes)
  35- 36  I2    arcsec  DEs       Declination B1950 (seconds)
      39  A1    ---     n_b26     [*] indicates overlapped images
  40- 44  F5.2  mag     b26       Blue magnitude in 26mag/arcsec2 isophote
  47- 50  F4.1  arcsec  r*(b)     Galaxy radius (2)
  52- 56  F5.2  mag     b-r       ? Photographic color index
  58- 60  I3    deg     PA        ? Position angle (East to North) of ellipse
  63- 66  F4.2  ---     eps       ? Ellipticity (1-b/a)

Note (1): ID contains /7J and /9J for A2197 and A2199 respectively.

Note (2): The radius r*(b) is defined as    sqrt(A/π)
  where A is the area of the galaxy enclosed in the 26mag/arcsec2 isophote


Acknowledgements:
    Heinz Andernach (catalog A346 in his collection)
(End)                                   Francois Ochsenbein [CDS]    31-Jul-2006