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J/ApJS/98/33      First Caltech-Jodrell Bank VLBI Survey. II. (Thakkar+ 1995)
The First Caltech-Jodrell Bank VLBI Survey. II. Lambda = 18 Centimeter
Observations of 25 Sources
     Thakkar D.D., Xu W., Readhead A.C.S., Pearson T.J., Taylor G.B.,
     Vermeulen R.C., Polatidis A.G., Wilkinson P.N.
    <Astrophys. J. Suppl. Ser. 98, 33 (1995)>
    =1995ApJS...98...33T
ADC_Keywords: VLBI ; QSOs ; Radio sources

Keywords: quasars: general - radio continuum: galaxies - surveys -
          techniques: interferometric

Abstract:
    We report lambda-18 cm VLBI observations made in 1991 September of a
    further 25 objects from the first Caltech-Jodrell Bank VLBI Survey
    (the CJ1 survey). The CJ1 sample is a complete, flux-density limited
    sample of 135 radio sources with total flux density at lambda-6cm
    between 0.7 and 1.3Jy. These observations complete the lambda-18cm
    part of the survey. Together with the results of Paper I (Polatidis et
    al., J/ApJS/98/1), we have now observed 81 CJ1 sources at
    lambda-18cm. Later papers in the series will present lambda-6cm
    observations and the analysis and interpretation of the results.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table2.dat        74       24   Map parameters
table3            53       44   Gaussian models
fig/*              0       51   Maps


See also:
    J/ApJS/98/1   : First Caltech-Jodrell Bank VLBI Survey. I (Polatidis+ 1995)
    J/ApJS/99/297 : First Caltech-Jodrell Bank VLBI Survey. III (Xu+ 1995)
    J/ApJS/95/345 : Second Caltech-Jodrell Bank VLBI Survey. I. (Taylor+ 1994)
    J/ApJS/100/1  : Second Caltech-Jodrell Bank VLBI Survey. II (Henstock+ 1995)


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

   Bytes Format Units   Label     Explanations

   1-  8  A8    ---     CJ1       B1950 source name according to IAU convention
  10- 13  I4    yr      OBSy      Date of VLBI observation (year)
  15- 16  I2    ---     OBSm      Date of VLBI observation (year)
  18- 20  A3    ---     Samp      VLBI sample (CJ1 or PR) source belongs to
  22- 26  F5.2  mas     a18cmn    FWHM of major axis of the restoring beam
  28- 32  F5.2  mas     b18cmn    FWHM of minor axis of the restoring beam
  34- 37  I4    deg     PA18cmn   [-89/32] Position angle of major axis,
                                    north through east
  39- 42  I4    mJy     S18cmn   *Peak flux density, naturally weighted map
  44- 47  F4.2  mJy     e_S18cmn *Off source rms, naturally weighted map
  49- 53  F5.2  mas     a18cmt    FWHM of major axis of tapered map restoring
                                   beam
  55- 59  F5.2  mas     b18cmt    FWHM of minor axis of tapered map restoring
                                   beam
  61- 64  I4    deg     PA18cmt   [-60/72] Position angle of major axis,
                                    N through E
  66- 69  I4    mJy     S18cmt   *Peak flux density, tapered map
  71- 74  F4.2  mJy     e_S18cmt *Off source rms, tapered map

Note on S18cmn, e_S18cmn, S18cmt, e_S18cmt: Data are in mJy/beam



Byte-by-byte Description of file: table3

   Bytes Format Units   Label     Explanations

   1-  8  A8    ---     CJ1       B1950 source name according to IAU convention
   9- 14  F6.3  Jy      S         Flux density of component
  15- 21  F7.2  mas     Rad      *Radius of component
  22- 28  F7.1  deg     Theta    *Angle to component
  29- 35  F7.2  mas     a         FWHM of major axis of component
  36- 40  F5.2  ---     b/a       Axial ratio of major to minor axis, b/a
  41- 47  F7.1  deg     Phi       Position angle of major axis, north through east
  48- 53  F6.3  ---     Chi2      []? Chi-squared between the model and the
                                     self-calibrated UV-data

Note on Rad:
  Radius of component, measured from position of first component
Note on Theta:
  Angle to component, measured north through east from the position of
  the first component


Origin: AAS CD-ROM series, Volume 4, 1995           Lee Brotzman [ADS] 10-May-95

(End)                                                         [CDS]  14-Oct-1996