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J/ApJS/65/485       1.49GHz Atlas of Spiral Galaxies         (Condon, 1987)
A 1.49 GHz atlas of spiral galaxies with BT≤12 and δ≥-45°.
    Condon J.J.
   <Astrophys. J. Suppl. 65, 485-541 (1987)>
   =1987ApJS...65..485C (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, radio ; Galaxies, optical

Keywords: galaxies: structure - radio sources: galaxies


Abstract:
    The VLA has been used in its most compact D- and C/D-configurations 
    to make low-resolution (θ∼0.9FWHM) 1.49GHz maps of the spiral
    galaxies north of DE=-45° and brighter than BT=+12, the
    completeness limit of the Revised Shapley-Ames Catalog (Cat. VII/51). 
    Most of these maps are confusion-limited at σ≥0.1mJy per beam,
    and at least 94% of the galaxies were detected with S≥1mJy. The maps
    have sufficient sensitivity to low-brightness emission that accurate
    radio "photometry" is possible. An atlas of contour maps, a table of
    total flux densities plus other radio source parameters, and
    references to published radio maps are given.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        97      314   Optical data
table2.dat        91      341   Radio data
notes.dat         80      668   Individual notes


See also:
   VII/51 : Revised Shapley-Ames Catalog of Bright Galaxies (Sandage+, 1981)


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

   Bytes Format Units   Label     Explanations

   1-  8  A8    ---     Name      Galaxy name
  11- 12  I2    h       RAh       Right ascension (1950.0)
  14- 15  I2    min     RAm       Right ascension (1950.0)
  17- 20  F4.1  s       RAs       Right ascension (1950.0)
      22  A1    ---     DE-       Declination sign (1950.0)
  23- 24  I2    deg     DEd       Declination (1950.0)
  26- 27  I2    arcmin  DEm       Declination (1950.0)
  29- 30  I2    arcsec  DEs       Declination (1950.0)
  33- 37  F5.2  mag     BTmag     Apparent blue magnitude
  40- 44  F5.1  arcmin  D25       Optical major diameter of the 25mag/arcsec
                                   isophote
  47- 50  F4.1  arcmin  d25       Optical minor diameter of the 25mag/arcsec
                                   isophote
  53- 55  I3    deg     PA        ? Optical major axis position angle
  59- 62  F4.1  Mpc     Dist      Hubble distance (1)
  65- 70  F6.2  mag     BTMAG     Absolute blue magnitude
  72- 78  A7    ---     MType1    Morphological type, from RC2
  80- 97  A18   ---     MType2    Morphological type, from RSAC

Note (1): Hubble distance, based on H0=50km/s/Mpc or, from group
    members, the group distance given by RSA (1981, Cat. VII/51) or by
    Kraan-Korteweg & Tammann (1979AN....300..181K)


Byte-by-byte Description of file: table2.dat

   Bytes Format Units   Label       Explanations

   1-  8  A8    ---     Name        Galaxy name
  11- 13  F3.1  arcmin  Beam        Restoring beam-width (FWHM)
  16- 17  I2    ---     n           ? Value that specifies the faintest contour
                                      level plotted, 2(n/2)mJy per beam
                                      solid angle (i.e., -3 means ∼0.35mJy/beam)
      19  A1    --      l_S1.49GHz  Limit flag on S1.49GHz
  20- 25  F6.1  mJy     S1.49GHz    Flux density at 1.49GHz
      26  A1    ---     n_S1.49GHz  [ue] Note on S1.49GHz (1)
      29  A1    --   l_logL1.49GHz  Limit flag on logL1.49GHz
  30- 34  F5.2  [W/Hz] logL1.49GHz  Absolute spectral luminosity at 1.49GHz
      35  A1    ---  n_logL1.49GHz  [ue] Note on logL1.49GHz (1)
  38- 39  I2    h       RAh         ? Component right ascension (1950) (2)
  41- 42  I2    min     RAm         ? Component right ascension (1950) (2)
  44- 47  F4.1  s       RAs         ? Component right ascension (1950) (2)
      49  A1    ---     DE-         Declination sign (1950) (2)
  50- 51  I2    deg     DEd         ? Declination (1950) (2)
  53- 54  I2    arcmin  DEm         ? Declination (1950) (2)
  56- 57  I2    arcsec  DEs         ? Declination (1950) (2)
  60- 65  F6.1  mJy     Sp          ? Peak flux density at 1.49GHz (2)
  68- 73  F6.1  mJy     SI          ? Integrated flux density at 1.49GHz (2)
      76  A1    --      l_FWHMmax   Limit flag on FWHMmax (2)
  77- 79  F3.1  arcsec  FWHMmax     ? FWHM major-axis diameter (2)
  82- 84  F3.1  arcsec  FWHMmin     ? FWHM minor-axis diameter (2)
  87- 89  I3    deg     PA          ? Position angle of the major axis (2)
      91  A1    ---     Notes       [*] Note detailed in notes.dat file

Note (1): u=uncertain value; e = estimated from filled-aperture observations

Note (2): Values for component parameters (deconvolved)



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

   Bytes Format Units   Label     Explanations

   1-  8  A8    ---     Name      Galaxy name
  10- 80  A71   ---     Note      Text of the note (1)

Note (1): S means S1.49GHz



Acknowledgements:
    From Heinz A. Andernach (R266 in his list)
(End)                                       Patricia Bauer  [CDS]    27-Nov-2003