Radiation from relativistic beams interacting with interstellar gas

Details Radiation from relativistic beams interacting with interstellar gas Radiation from relativistic beams interacting with interstellar gas

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...314...95r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 314, March 1, 1987, p. 95-102.

Astronomy and Astrophysics

Astrophysics

14

Galactic Nuclei, Interstellar Gas, Interstellar Radiation, Particle Beams, Quasars, Relativistic Particles, Electron Beams, Galactic Radiation, Proton Beams

Scientific paper

Radiative processes resulting from the interaction between relativistic e(-) - e(+) and e(-) - p beams and interstellar gas are described. Calculations of the energy loss in relativistic e(-) - e(+) beams interacting with a cloud optically thin to continuum radiation but optically thick to line photons are first presented; then, collisionless versus inverse Compton losses for the e(-) - e(+) beam are compared. The effects of plasma turbulence on the number density of photons in the cloud are calculated, and it is suggested that as a consequence of plasma turbulence, significant high-energy tails will develop on the Maxwell-Boltzmann distribution of the ambient gas. The additional effects associated with e(-) p beams are calculated. These beams have greatly extended propagation lengths for similar energy loss mechanisms. Additional collisional processes are discussed which can result in significant direct energy loss by the beam protons.

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