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J/ApJS/100/1    Second Caltech-Jodrell Bank VLBI Survey. II.  (Henstock+ 1995)
The Second Caltech-Jodrell Bank VLBI Survey. II. Observations of 102 of 193
Sources
    Henstock D.R., Browne I.W.A., Wilkinson P.N., Taylor G.B.,
    Vermeulen R.C., Pearson T.J., Readhead A.C.S.
   <Astrophys. J. Suppl. Ser. 100, 1 (1995)>
   =1995ApJS..100....1H      (SIMBAD/NED BibCode)
ADC_Keywords: VLBI ; QSOs ; Radio sources

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

Description:
    This is the second of two papers presenting the Second Caltech-
    Jodrell Bank VLBI survey (CJ2). The CJ2 sample consists of 193 flat-
    and gigahertz-peaked-spectrum sources selected at 4850 MHz. In this
    paper we present images of the remaining 102 sources with ∼1 mas
    resolution, obtained using VLBI snapshot observations at 4992 MHz with
    a global array. We also present integrated radio spectra for the
    entire CJ2 sample.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table2.dat        66      102   Map parameters
table3            64      254   Gaussian models
fig/*              0       51   Maps in FITS format


See also:
    J/ApJS/98/1   : First Caltech-Jodrell Bank VLBI Survey. I (Polatidis+ 1995)
    J/ApJS/98/33  : First Caltech-Jodrell Bank VLBI Survey. II (Thakkar+ 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)


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

   Bytes Format  Units Label       Explanations

   1-  8  A8     ---   Source      B1950 source name according to IAU convention
  10- 17  A8     ---   Date        Date of VLBI observation
  19- 20  I2     min   Dur         Duration on source of VLBI observation
  22- 25  F4.2   mas   a           FWHM of major axis of the restoring beam
  27- 30  F4.2   mas   b           FWHM of minor axis of the restoring beam
  32- 34  I3     deg   PA          [-79/57] Position angle of major axis,
                                             north through east
  36- 39  I4     mJy   S4.85GHzn  *Peak flux density, naturally weighted map
  41- 45  F5.2   mJy  e_S4.85GHzn *Off source rms, naturally weighted map
  47- 50  F4.2   %     S4.85GHznC  First contour, percent of peak flux density
  52- 55  I4     mJy   S4.85GHzt  *? Peak flux density, tapered map
  57- 61  F5.2   mJy  e_S4.85GHzt *? Off source rms, tapered map
  63- 66  F4.2   %     S4.85GHztC  ? First contour, % of peak flux density

Note on S4.85GHzn, e_S4.85GHzn, S4.85GHzt, e_S4.85GHzt: Data are in mJy/beam



Byte-by-byte Description of file: table3

   Bytes Format  Units   Label    Explanations

   1-  8  A8     ---     CJ2      B1950 source name according to IAU convention
  10- 14  F5.3   Jy      S        Flux density of component
  16- 21  F6.2   mas     Rad     *Radius of component
  23- 28  F6.1   deg     Theta   *Angle to component
  30- 34  F5.2   mas     a        FWHM of major axis of component
  36- 39  F4.2   ---     b/a      Axial ratio of major to minor axis, b/a
  41- 46  F6.1   deg     Phi      Position angle of major axis,
                                   north through east
  48- 52  F5.3   ---     Amp      []? Amplitude agreement factor
  54- 58  F5.3   ---     Phase    []? Closure phase agreement factor
  60- 64  F5.3   ---     Total    []? Total agreement factor

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)                                          Patricia Bauer [CDS]  14-Oct-1996