Transport of neutrinos, radiation and energetic particles in accretion flows

Details Transport of neutrinos, radiation and energetic particles in accretion flows Transport of neutrinos, radiation and energetic particles in accretion flows

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982rspsa.383..409c&link_type=abstract

Royal Society (London), Proceedings, Series A - Mathematical and Physical Sciences, vol. 383, no. 1785, Oct. 8, 1982, p. 409-437

Astronomy and Astrophysics

Astrophysics

28

Accretion Disks, Charged Particles, Energetic Particles, Gravitational Collapse, Neutrinos, Stellar Mass Accretion, Cosmic Rays, Electromagnetic Radiation, Particle Acceleration, Quasars, Red Giant Stars, Stellar Evolution, Supernovae

Scientific paper

The equations describing the transport of suprathermal charged particles, electromagnetic radiation and neutrinos across accretion flows onto compact objects are solved analytically, the effects of shocks in the flow being included. These solutions are used in discussing three illustrative astrophysical examples: acceleration of cosmic rays, generation of spectral continua in quasars and the effect of neutrinos during the collapse of supernova precursors. The main results are: accretion flows with shocks accelerate cosmic rays very efficiently up to the highest energies; the emergent spectra of electromagnetic radiation from such flows reproduce the observed spectra of quasars from infrared to the hard X-ray region; the neutrinos in the collapsing cores of red giants develop a very hard non-thermal tail in their distribution facilitating the rebound of the gravitational collapse leading to the supernovae.

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