Formation of dense solid particles in a protoplanetary cloud

Details Formation of dense solid particles in a protoplanetary cloud Formation of dense solid particles in a protoplanetary cloud

Feb 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982azh....59..119k&link_type=abstract

(Astronomicheskii Zhurnal, vol. 59, Jan.-Feb. 1982, p. 119-128.) Soviet Astronomy, vol. 26, Jan.-Feb. 1982, p. 73-78. Translati

Astronomy and Astrophysics

Astronomy

1

Interplanetary Dust, Interstellar Matter, Particle Size Distribution, Planetary Evolution, Protoplanets, Sintering, Agglomeration, Silicates, Temperature Dependence

Scientific paper

The formation of solid particles in the protoplanetary cloud has been examined on the basis of a sintering theory. The study suggests that such particles could be formed in a region of a protoplanetary cloud with temperature not lower than about 500 K. The size of metallic iron SP was estimated as 2 x 10 to the -3rd to 2 x 10 to the -2nd cm while that of silicate particles was estimated as less than 10 to the -3rd cm. The size of solid particles (particularly ice) is thought to depend to a strong degree on their temperature in the coagulation period. Thus, the sizes and compositions of SP in different parts of the protoplanetary cloud could have been quite different.

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