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Identifications from the WSRT Deep Surveys

Published online by Cambridge University Press:  14 August 2015

J. K. Katgert ,
H. R. de Ruiter  and
A. G. Willis
J. K. Katgert
Affiliation:
Laboratorio di Radioastronomia CNR, Bologna
H. R. de Ruiter
Affiliation:
Sterrewacht, Leiden
A. G. Willis
Affiliation:
Sterrewacht, Leiden

Extract

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The WSRT yields samples of radio sources which are well suited for systematic identification work for the following reasons:

  1. a) The surface density is high: at 1415 MHz an average of 10 to 30 sources can be detected within 0°.55 from the field centre; at 610 MHz the numbers are 40 to 100 within 1°.0. In any given field, most sources will fall within the boundaries of plates for the present generation of optical telescopes.

  2. b) The positional accuracy is, on the whole, rather high. One can thus propose identifications based on positional agreement only, avoiding selection effects present when selecting “on type”.

Type
IV. Optical Spectra and Identifications
Information
Symposium - International Astronomical Union , Volume 74: Radio Astronomy and Cosmology , 1977 , pp. 165 - 170
Copyright
Copyright © Reidel 1977 

References

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Richter, G.A., 1975, Astron. Nachr. 296, 65.Google Scholar
Ruiter, H.R. de, Willis, A.G. and Arp, H.C., 1976, submitted to Astron. Astrophys. Suppl. Google Scholar
Valentijn, E.A., Perola, G.C. and Jaffe, W.J., 1977, submitted to Astron. Astrophys. Suppl. Google Scholar
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