The circumstellar dust shell of IRC + 10216

Details The circumstellar dust shell of IRC + 10216 The circumstellar dust shell of IRC + 10216

Mar 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.190..669m&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 190, Mar. 1980, p. 669-682. Research supported by the Australian Resear

Astronomy and Astrophysics

Astronomy

37

Cosmic Dust, Energy Spectra, Graphite, Infrared Stars, Silicon Carbides, Stellar Envelopes, Energy Distribution, Optical Properties, Spectrum Analysis, Stellar Models, Stellar Temperature

Scientific paper

The paper considers the energy distribution of the bright infrared object IRC+10216 in terms of an extended, optically thick dust shell. It is shown that the general spectral and spatial characteristics of the source are well described by a spherical graphite shell and that the grain optical parameters may differ from the graphite data used here. The maximum grain temperature in the dust model is below the expected condensation temperature of graphite; finally, consideration of the SiC2 molecule in relation to the SiC dust suggests the possibility of a correlation between the blue-green Merrill-Sanford bands and the 10-13 micron emission feature.

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