Motion around a source whose luminosity changes. II - Stochastic scattering, accretion, and ejection

Details Motion around a source whose luminosity changes. II - Stochastic scattering, accretion, and ejection Motion around a source whose luminosity changes. II - Stochastic scattering, accretion, and ejection

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...228..555s&link_type=abstract

Astrophysical Journal, Part 1, vol. 228, Mar. 1, 1979, p. 555-559.

Astronomy and Astrophysics

Astrophysics

1

Particle Collisions, Stellar Gravitation, Stellar Luminosity, Stellar Mass Ejection, Stochastic Processes, Bunching, Capture Effect, Energy Dissipation, Scattering, White Noise

Scientific paper

Stochastic fluctuations in the radiation pressure of a central gravitating source can strongly affect the orbits of initially unbound particles. This is treated as a scattering problem and solved completely for white-noise fluctuations. Initially unbound particles can be captured. The capture is temporary for collisionless particles. Eventually they become unbound for any nonzero amplitude of the fluctuations. Capture occurs preferentially at particular orbital angles, leading to a bunching effect. Particles that collide within these bunches and dissipate enough energy may be accreted permanently.

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