Hostname: page-component-848d4c4894-v5vhk Total loading time: 0 Render date: 2024-06-16T17:59:33.672Z Has data issue: false hasContentIssue false
  • English
  • Français

High Energy Gamma Rays from Accretion Disc

Published online by Cambridge University Press:  14 August 2015

F. Giovannelli ,
S. Karakula  and
W. Tkaczyk
F. Giovannelli
Affiliation:
Istituto di Astrofisica Spaziale/CNR, Frascati, Italy
S. Karakula
Affiliation:
Dept. of Physics, University of Lodz, Poland
W. Tkaczyk
Affiliation:
Dept. of Physics, University of Lodz, Poland

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 the case of spherical symmetric accretion into a black hole, the matter may be heated up to the temperature KT = 0.1 mpc2 (Kolykhalov and Sunyaev, 1979). In such a hot plasma inelastic collisions of protons may produce Π° which is the gamma quantum source.

In this work we determined γ-rays production spectrum in the comoving plasma reference frame, expected γ-rays spectrum for the case of spherica symmetric accretion of matter into a black hole and the upper limit to the number of black holes in Galaxy is evaluated.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 94: Origin of Cosmic Rays , 1981 , pp. 335 - 336
Copyright
Copyright © Reidel 1981 

References

Kolykhalov, P.I., Sunyaev, R.A.: 1979, Soviet Astron. J. 56, 338 Google Scholar
Dahlbacka, G.H. et al.: 1974, Nature 250, 36 Google Scholar
Barashenkov, W.S. et al.: 1972, Vzajmodestvija vysokoenergeticeskih castic i atomnyh jader s jadrami, Moscow Google Scholar
Michel, F.C.: 1972, Astrophys. and Space Sci. 15, 153 CrossRefGoogle Scholar
Strong, A.W. et al.: 1976, Mon. Not. R. Astr. Soc. 175, 23P Google Scholar