On the production of suprathermal grains by radiation pressure

Details On the production of suprathermal grains by radiation pressure On the production of suprathermal grains by radiation pressure

Apr 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ap%26ss..61..411s&link_type=abstract

Astrophysics and Space Science, vol. 61, no. 2, Apr. 1979, p. 411-415.

Astronomy and Astrophysics

Astrophysics

4

Granular Materials, Interstellar Matter, Particle Production, Radiation Effects, Radiation Pressure, Thermal Energy, Cosmic Dust, Energetic Particles, Plasma Clouds, Pressure Effects

Scientific paper

An attempt is made to determine the conditions under which suprathermal grains can be reasonably expected to occur when the grains are accelerated by radiation pressure to a velocity exceeding the thermal velocity of ambient gas atoms or molecules. Physical effects of importance in interstellar clouds are examined, along with the production of suprathermal grains in the intercloud medium. It is concluded that suprathermal grains would be very likely to exist close to OB associations, that they most likely do not exist in normal clouds, and that there is a small possibility that they might exist in the core or outer regions of a typical molecular cloud with a source or beyond 10 solar radii of a fairly normal star.

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