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Properties of Neutral Hydrogen Clouds

Published online by Cambridge University Press:  14 August 2015

Ulrich J. Schwarz  and
Hugo van Woerden
Ulrich J. Schwarz
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, Groningen, The Netherlands
Hugo van Woerden
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, Groningen, The Netherlands

Abstract

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In the region +19° <b< +30°, 122° <l< 143°, 21-cm line profiles were analyzed into Gaussian components, and these components combined into clouds, by means of computerized procedures. Maps of some of the clouds so defined are presented, and their properties discussed. Many clouds are elongated and/or irregular in shape. Histograms of cloud parameters are presented and subjected to statistical analysis. There is evidence for tenuous clouds of large angular extent but very low column density (NH<1019 cm-2).

Type
Part 1: The Interstellar Medium
Information
Symposium - International Astronomical Union , Volume 60: Galactic Radio Astronomy , 1974 , pp. 45 - 50
Copyright
Copyright © Reidel 1974 

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