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 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:
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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
(End) [CDS] 14-Oct-1996