Formation of dust grains in the ejecta of SN 1987A

Details Formation of dust grains in the ejecta of SN 1987A Formation of dust grains in the ejecta of SN 1987A

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...344..325k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 344, Sept. 1, 1989, p. 325-331.

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Cosmic Dust, Star Formation, Stellar Mass Ejection, Supernova 1987A, Carbon, Computation, Condensation, Ejecta, Grains, Metal Oxides, Nucleation

Scientific paper

Formation of dust grains in the ejecta of SN 1987A is investigated on the basis of a theory of homogeneous nucleation and grain growth. The formation of dust grains in the gas ejected from a heavy element-rich mantle is considered, including the effects of latent heat released during grain growth and of radiation from the photosphere. It is shown that dust grains can condense in the heavy-element-rich mantle, and that the time of formation strongly depends on the temperature structure in the ejecta. Moreover, the formation of dust grains is retarded by the strong SN radiation field and the effect of latent heat deposited during grain growth.

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