Sputtering of Grains in the Outflows of Cool Stars

Details Sputtering of Grains in the Outflows of Cool Stars Sputtering of Grains in the Outflows of Cool Stars

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...193.6917c&link_type=abstract

American Astronomical Society, 193rd AAS Meeting, #69.17; Bulletin of the American Astronomical Society, Vol. 30, p.1352

Astronomy and Astrophysics

Astronomy

Scientific paper

The outflows of cool stars are driven by radiation pressure on the dust component which transfers momentum to the gas component through collisions. The gas and dust are treated as a two component fluid and the outflow is assumed to be stationary. We use the method of Kruger, Woitke, and Sedlmayr (1995, A&AS, 113, 593) to track the evolution of a sample of silicate grains that initially has an MRN distribution and is being modified by nonthermal sputtering. The size distribution of dust grains as a function of radial position in the outflow will be presented.

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