Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978azh....55..991k&link_type=abstract
(Astronomicheskii Zhurnal, vol. 55, Sept.-Oct. 1978, p. 991-1001.) Soviet Astronomy, vol. 22, Sept.-Oct. 1978, p. 566-572. Tran
Astronomy and Astrophysics
Astronomy
Condensation, Cosmic Dust, Galactic Evolution, Granular Materials, Interstellar Matter, Cosmology, Interstellar Extinction, Interstellar Gas, Milky Way Galaxy, Nucleation, Particle Mass, Spiral Galaxies
Scientific paper
The hypothesis is considered that dust grains form in dense interstellar clouds. The formation of nucleation centers in dense interstellar clouds is analyzed, along with grain growth, cloud cooling during dust condensation, and the evolution of interstellar clouds containing condensing dust grains. It is shown that condensing clouds should be strong sources of radiation at wavelengths in the vicinity of 300 microns and that the dust condensation process can explain such phenomena as the total mass of dust particles in the Galaxy, the association between Galactic dust and gas, the absorption rims observed along the inner edges of spiral arms in external galaxies, and the observed depletion of heavy elements in the interstellar medium.
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