Abstract
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 (N H < 1019 cm-2).
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Clark, B. G.: 1965, Astrophys. J.142, 1398.
Field, G. B. and Hutchins, J.: 1968, Astrophys. J.153, 737.
Heiles, C.: 1967, Astrophys. J. Suppl.15, 97.
Kaper, H. G., Smits, D. W., Schwarz, U. J., Takakubo, K., and Woerden, H. van: 1966, Bull. Astron. Inst. Neth.18, 465.
Muller, C. A.: 1959, in R. N. Bracewell (ed.), ‘Paris Symposium on Radio Astronomy’, IAU Symp.9, 360.
Radhakrishnan, V. and Goss, W. M.: 1972, Astrophys. J. Suppl.24, 161.
Radhakrishnan, V., Murray, J. D., Lockhart, P., and Whittle, R. P. J.: 1972, Astrophys. J. Suppl.24, 15.
Takakubo, K.: 1968, Bull. Astron. Inst. Neth.20, 107.
Woerden, H. van: 1967, in H. van Woerden (ed.), ‘Radio Astronomy and the Galactic System’, IAU Symp.31, 3.
Woerden, H. van: 1970, in H. J. Habing (ed.), ‘Interstellar Gas Dynamics’, IAU Symp.39, 369.
Woerden, H. van, Takakubo, K., and Braes, L. L. E.: 1962, Bull. Astron. Inst. Neth.16, 321.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1974 IAU
About this chapter
Cite this chapter
Schwarz, U.J., Van Woerden, H. (1974). Properties of Neutral Hydrogen Clouds. In: Kerr, F.J., Simonson, S.C. (eds) Galactic Radio Astronomy. International Astronomical Union/ Union Astronomique Internationale, vol 60. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-2263-7_3
Download citation
DOI: https://doi.org/10.1007/978-94-010-2263-7_3
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-277-0502-0
Online ISBN: 978-94-010-2263-7
eBook Packages: Springer Book Archive