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Part III: General Summarizing Discussion of Problems Raised in Parts I and II

Published online by Cambridge University Press:  03 August 2017

Abstract

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Type
Discussion
Copyright
Copyright © American Physical Society 1958 

References

1 van de Hulst, H. C. and Burgers, J. M., editors, I. A. U. Symposium No. 2 (North-Holland Publishing Company, Amsterdam, The Netherlands, 1955).Google Scholar

2 See reference 1, p. 154.Google Scholar

3 See reference 1, p. 145.Google Scholar

4 See reference 1, pp. 127129.Google Scholar

5 Hall, J. S. and Mikesell, A. H., Publ. U. S. Nav. Observ. 17, Part I (1950).Google Scholar

6 Hiltner, W. A., Astrophys. J. 114, 241 (1954).Google Scholar

7 Hiltner, W. A., Astrophys. J. Suppl. II, No. 24, 389 (1956).Google Scholar

Note added by editor in proof .—Dieter's thesis, Harvard, 1958, presents evidence for a halo in M 33. Peak emission —4°K; velocity dispersion —50 km/sec; density ∼0.1 M H within radius 34 kpc; total halo mass ∼3% mass M 33.Google Scholar

8 Biermann, L., Kosmische Physik , edited by Heisenberg, W. (Springer-Verlag, Berlin, 1953), second edition, Chap. I. 4.Google Scholar