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Twenty-one-cm Studies of Some Interstellar Clouds

Published online by Cambridge University Press:  03 August 2017

R. D. Davies
R. D. Davies*
Affiliation:
Jodrell Bank Experimental Station, Manchester University, Manchester, England

Extract

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Cygnus-x is an extended radio source centered at δ=40° and R.A. = 20h25m (l=48°, b=0°). Its emission in the continuous spectrum has been studied by Davies using high resolution surveys at the following frequencies: 92, 158, and 1425 Mcps, 242, 400, 600, and 900 Mcps. The background emission at the position of the source was removed by a smooth interpolation in galactic longitude between the two sides of the source. The resultant flux density did not change significantly with frequency and had the value 4.5 X 10−23 wm2 (cps)−1. Moreover, the brightness temperature Ts of the center of the source varied inversely as the square of the frequency v; Ts·v2 had the value 3.5X1019 °K sec−2.

Type
Part I: Empirical Studies of Velocity Fields in, and Related Structure of, the Interstellar Medium
Information
Symposium - International Astronomical Union , Volume 8: Cosmical Gas Dynamics , July 1958 , pp. 931 - 934
Copyright
Copyright © American Physical Society 1958 

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