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Galactic continuum source counts

Published online by Cambridge University Press:  14 August 2015

T. L. Wilson
T. L. Wilson*
Affiliation:
National Radio Astronomy Observatory, Charlottesville, Va., U.S.A.

Abstract

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The CSIRO 11 cm continuum survey of the galactic plane from lII = 280° to 37° has recently been finished. I have used this survey to compare the number of sources in various 5° intervals north and south of the galactic center. The NRAO-CSIRO-MIT H 109α line survey (Wilson et al., 1970) found 39 sources lying between 330° and 340°, while the NRAO-MIT (Reifenstein et al., 1970) survey found only 14 between 20° and 30°. If the galaxy were symmetric, one would expect roughly equal numbers. One suspects a selection effect is present, and a rough check is very worthwhile. The CSIRO survey is particularly valuable since it is the highest resolution survey covering large portions of the galaxy on both sides of the center.

Type
Part II/Observations of Spiral Structure in Our Galaxy
Information
Symposium - International Astronomical Union , Volume 38: The Spiral Structure of our Galaxy , 1970 , pp. 140 - 141
Copyright
Copyright © Reidel 1970 

References

Reifenstein, E. C. III, Wilson, T. L., Burke, B. F., Mezger, P. G., and Altenhoff, W. J.: 1970, Astron. Astrophys. 4, 357.Google Scholar
Wilson, T. L., Mezger, P. G., Gardner, F. F., and Milne, D. K.: 1970, in preparation.Google Scholar