J/A+A/472/763 Multi-epoch VLBI survey of CJF sources (Britzen+, 2007)
A multi-epoch VLBI survey of the kinematics of CJF sources
Part I: Model-fit parameters and maps.
Britzen S., Vermeulen R.C., Taylor G.B., Campbell R.M., Pearson T.J.,
Readhead A.C.S., Xu W., Browne I.W.A., Henstock D.R., Wilkinson P.
<Astron. Astrophys. 472, 763 (2007)>
=2007A&A...472..763B 2007A&A...472..763B
ADC_Keywords: Surveys ; Radio sources ; Morphology
Keywords: techniques: interferometric - surveys - galaxies: active -
radio continuum: galaxies
Description:
Global VLBI and VLBA observations (5GHz) of 293 sources of the
CJF-sample have been conducted between 1990 and 2001. In total,
thirteen separate observing campaigns have been accumulated.
File table2.dat contains results from model-fitting Gaussian components
to the data. We list the parameters for 288 sources in Table 2.
fig directory contains the corresponding images, built up by restoring
the model-fitted components, convolved with the clean beam, into the
residual image, which was made by Fourier transforming the visibility
data after first subtracting the model-fitted components in the
uv-plane. Over-plotted we show symbols to represent the model
components.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
sources.dat 99 288 Source list
table2.dat 129 4079 Model fit parameters for 288 sources observed
in 5GHz VLBI observations
fig/* . 894 Individual images of the CJF-sources with
symbols representing the Gaussian model
components overplotted PostScript
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Byte-by-byte Description of file: sources.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- B1950 IAU-name of the source HHMM+DDd (B1950),
CJF BHHMM+DDd in Simbad
10- 28 A19 --- Name Name with J2000 position
31- 43 A13 ---- FileName1 Image name of the 1st epoch observation
in subdirectory fig (1)
45- 57 A13 ---- FileName2 Image name of the 2nd epoch observation
in subdirectory fig (1)
59- 71 A13 ---- FileName3 Image name of the 3rd epoch observation
in subdirectory fig (1)
73- 85 A13 ---- FileName4 Image name of the 4th epoch observation
in subdirectory fig (1)
87- 99 A13 ---- FileName5 Image name of the 5th epoch observation
in subdirectory fig (1)
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Note (1): IAU-name of the source (1950), the last digit describes the epoch
of observation.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- B1950 IAU-name of the source HHMM+DDd (B1950),
CJF BHHMM+DDd in Simbad
10- 28 A19 --- Name Name with J2000 position
31- 40 A10 "YYYY/MM/DD" Obs.Date Epoch of the observation
42- 44 A3 --- Comp Component identification
46- 50 F5.3 Jy Sint The 5GHz integrated flux in the component
52- 56 F5.3 Jy e_Sint rms uncertainty of the integrated flux
58- 63 F6.2 mas Xpos Cartesian coordinate x
65- 68 F4.2 mas e_Xpos rms uncertainty on Xpos
70- 75 F6.2 mas Ypos Cartesian coordinate y
77- 80 F4.2 mas e_Ypos rms uncertainty on Ypos
82- 87 F6.2 mas Dist The radial distance of the component center
from the center of the map
89- 92 F4.2 mas e_Dist rms uncertainty of the radial distance
94- 99 F6.1 deg PA [-180/180] The position angle of the center
of the component (degrees North -> East)
wrt an imaginary line drawn vertically
through the map center
101-104 F4.1 deg e_PA rms uncertainty of the position angle
106-109 F4.1 mas FWHM The FWHM axis of the circular component
111-114 F4.1 mas e_FWHM rms uncertainty of the FWHM axis
116-122 F7.3 --- chi2 ? reduced chi-squared value
124-129 I6 --- DOF ? number of degrees of freedom
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Acknowledgements:
Silke Britzen, sbritzen(at)mpifr-bonn.mpg.de
(End) Patricia Vannier [CDS] 26-Jun-2007