Simulation of cosmic dust spectra

Details Simulation of cosmic dust spectra Simulation of cosmic dust spectra

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...309...90h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 309, Oct. 1, 1986, p. 90-99. Research supported by the Aerospace Corp.

Astronomy and Astrophysics

Astrophysics

21

Cosmic Dust, Infrared Spectra, Interstellar Matter, Silicates, Hydration, Interplanetary Dust, Interstellar Extinction, Magnesium Compounds, Protostars

Scientific paper

Several possible analogs of cosmic dust have been produced by a variety of techniques. Extinction and emission spectra of these grain samples reveal that hydrated silicates, in particular those which are Mg-rich, produce infrared spectra that bear strong resemblances to the spectra of a variety of astronomical dust grains ranging from those found within the solar system to those found in dense, cold, molecular clouds. An identification of hydrated silicates as the origin of the 6.0 and 6.8 micron features is proposed as part of a model which is consistent with all the spectra available to date on both cosmic dust and the laboratory samples studied.

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