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J/ApJS/98/33      First Caltech-Jodrell Bank VLBI Survey. II. (Thakkar+ 1995)
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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
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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:
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 FileName    Lrecl    Records    Explanations
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ReadMe          80          .   This file
table2.dat      74         24   Map parameters
table3          53         44   Gaussian models
fig/*            .         51   Maps
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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
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   Bytes Format  Units     Label  Explanations
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   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
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Note on S18cmn, e_S18cmn, S18cmt, e_S18cmt: Data are in mJy/beam
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Byte-by-byte Description of file: table3
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   Bytes Format  Units   Label  Explanations
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   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
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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
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Origin: AAS CD-ROM series, Volume 4, 1995           Lee Brotzman [ADS] 10-May-95
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(End)                                                         [CDS]  14-Oct-1996