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J/ApJS/100/1 Second Caltech-Jodrell Bank VLBI Survey. II. (Henstock+ 1995)
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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)
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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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 66 102 Map parameters
table3 64 254 Gaussian models
fig/* . 51 Maps in FITS format
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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
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Bytes Format Units Label Explanations
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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
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Note on S4.85GHzn, e_S4.85GHzn, S4.85GHzt, e_S4.85GHzt: 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 --- 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
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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) Patricia Bauer [CDS] 14-Oct-1996