High Energy Gamma Rays from Accretion Disc

  • F. Giovannelli
  • S. Karakula
  • W. Tkaczyk
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 94)


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 (Dahlbacka et al., 1974; Kolykhalov and Sunyaev, 1979).


Lution Reso 


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

Copyright information

© IAU 1981

Authors and Affiliations

  • F. Giovannelli
    • 1
  • S. Karakula
    • 2
  • W. Tkaczyk
    • 2
  1. 1.Istituto di Astrofisica Spaziale/CNRFrascatiItaly
  2. 2.Dept. of PhysicsUniversity of LodzPoland

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