Thermal coagulation of charged grains in dense clouds

Details Thermal coagulation of charged grains in dense clouds Thermal coagulation of charged grains in dense clouds

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ap%26ss..61...65s&link_type=abstract

Astrophysics and Space Science, vol. 61, no. 1, Mar. 1979, p. 65-80.

Astronomy and Astrophysics

Astrophysics

7

Dense Plasmas, Galactic Nuclei, Heavy Ions, Interstellar Matter, Coagulation, Discrete Functions, Hydrogen Clouds, Particle Interactions, Particle Size Distribution, Photoelectricity, Photoionization, Polarization (Charge Separation), Temperature Effects

Scientific paper

A treatment is given of the thermal coagulation of interstellar grains, taking their charge fully into account. The original calculations showed this charge to be negative unless photoionization dominated when it became positive. More recently, the effects of discreteness in the charge and of grain polarization have been considered and all these effects are included in the present work. The general conclusion is that the effect of charge is to decrease grain coagulation although a very small increase can occur for certain situations in the presence of photoionization.

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