Radiation pressure on circumstellar grains - Opacity effects

Details Radiation pressure on circumstellar grains - Opacity effects Radiation pressure on circumstellar grains - Opacity effects

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...219..265l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 219, no. 1-2, July 1989, p. 265-270.

Astronomy and Astrophysics

Astrophysics

8

Radiation Pressure, Stellar Envelopes, Stellar Mass Ejection, Carbon, Silicates

Scientific paper

A numerical simulation to calculate the radiation pressure on silicate and carbon grains in spherical circumstellar shells is reported. The simulation accounts for the opacity effect and the thermal emission from other grains. The momentum in mass outflow is compared to the flux of momentum in the stellar radiation, assuming the momentum coupling between the grains and the gas. The results support the conclusion that the radiation pressure on the grains drives the mass loss to its terminal velocity.

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