Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26as...43..195v&link_type=abstract
Astronomy and Astrophysics Supplement, Vol. 43, P. 195, 1981
Astronomy and Astrophysics
Astrophysics
2
Scientific paper
The 4C survey of radio sources between declination 20° and 40° (Pilkington and Scott, 1965) with galactic latitude |b| > 20° and with 178 MHz flux density S (178) ≥ 2.5 Jy has been corrected as well as possible for resolution and confusion effects (Véron and Véron, 1980). The flux densities at 2.7 GHz (11 cm) and 5 GHz (6 cm) of most of the sources in this sample for which no such flux densities were available have been measured with the Effelsberg 100 m telescope of the Max-Planck Institute for Radioastronomy in Bonn. These observations also provide radio positions with an accuracy of the order of 5 to 10 arcsec., which, in many cases, are the best available and will be used for the optical identification of these sources (paper IV in preparation). These measurements are reported in the present paper.
Pauliny-Toth I. I. K.
Veron M.-P.
Véron Pascal
Witzel Andreas
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