Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-30T04:44:25.491Z Has data issue: false hasContentIssue false

A model of γ-ray sources in the Galaxy

Published online by Cambridge University Press:  14 August 2015

S. Hayakawa
Affiliation:
Dept. of Physics, Nagoya University, Nagoya, Japan
Y. Tanaka
Affiliation:
Dept. of Physics, Nagoya University, Nagoya, Japan

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In a recent observation Clark et al. [1] have found that the intensity of γ-Rays of energies around 100 MeV is strong in the direction of the galactic plane; the observed intensity of the order of 10−4 cm−2 sec−1 rad−1 is greater by an order of magnitude than that predicted on the neutral pion decay hypothesis [2]. It should, however, be remarked that the theory is based on the assumption that cosmic rays are uniformly distributed in our galaxy. The assumption seems doubtful in view of the experimental result that the γ-Ray intensity depends rather strongly on the galactic longitude.

Type
Research Article
Copyright
Copyright © Reidel 1970 

References

[1] Clark, G. W., Garmire, G. P., and Kraushaar, W. L.: 1968, Astrophys. J. 153, L203.Google Scholar
[2] Hayakawa, S., Okuda, H., Tanaka, Y., and Yamamoto, Y.: 1964, Prog. Theor. Phys. Suppl. No. 30, 153.Google Scholar
[3] Kerr, F. J.: 1962, Monthly Notices Roy. Astron. Soc. 123, 327.Google Scholar
[4] Fujimoto, M., Hayakawa, S., and Kato, T.: 1969, Astrophys. Space Sci. 4 64.CrossRefGoogle Scholar
[5] Poveda, A. and Woltjer, L.: 1968, Astron. J. 73, 65.CrossRefGoogle Scholar
[6] Fanselow, J. L., Hartman, R. C., Hildebrand, R. H., and Meyer, P.: 1968.Google Scholar
[7] Webber, W. R.: 1968, Aust. J. Phys. 21, 845.Google Scholar