Type of silicate feature in oxygen rich stellar envelopes.

Details Type of silicate feature in oxygen rich stellar envelopes. Type of silicate feature in oxygen rich stellar envelopes.

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989iaus..135p.521i&link_type=abstract

IAU Symposium No. 135: Interstellar dust: contributed papers, p. 521 - 522

Astronomy and Astrophysics

Astronomy

Stellar Envelopes: Infrared Spectra

Scientific paper

The 10 μm silicate feature is seen in several types of astronomical sources. Laboratory measurements of emissivities of silicate grains of different types show variation in the absolute value and in wavelength dependence. In many astronomical studies, one has used the emissivity function derived from the Trapezium emission feature. Here, the authors describe a statistical study of a large sample of objects about the applicability of this commonly used function.

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