The maximum temperatures of interstellar grains

Details The maximum temperatures of interstellar grains The maximum temperatures of interstellar grains

Jan 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..46..175t&link_type=abstract

Astrophysics and Space Science, vol. 46, Jan. 1977, p. 175-181.

Astronomy and Astrophysics

Astrophysics

6

Granular Materials, Heat Of Formation, Interstellar Matter, Photoabsorption, Temperature Distribution, Chemical Bonds, Desorption, Electron Gas, Molecular Collisions, Polyatomic Molecules, Solids, Specific Heat

Scientific paper

The maximum temperature a typical interstellar grain will attain upon absorption of a photon or chemical-bond formation on its surface is calculated by considering the exact Debye theory of dielectrics. Other contributions to the specific heats of solids are discussed. It is shown that the use of the approximate Debye theory, where specific heat at constant volume is proportional to temperature, will lead to serious errors in calculating velocities of desorption of molecules from grain surfaces.

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