Silicon carbide and the 11.3-mu M feature

Details Silicon carbide and the 11.3-mu M feature Silicon carbide and the 11.3-mu M feature

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...329.1035p&link_type=abstract

Astronomy and Astrophysics, v.329, p.1035-1044 (1998)

Astronomy and Astrophysics

Astrophysics

26

Methods: Laboratory, Stars: Carbon, Stars: Circumstellar Matter, Infrared: Stars

Scientific paper

We have synthesized crystalline SiC powders and obtained their IR extinction spectra when embedded in KBr and CsI matrices. These spectra are not compatible with purely spherical grains. By contrast, they quantitatively support the assumptions that 1) the bulk optical constants of the grains are identical with those of thin films, and very nearly independent of crystal polytype, as measured by Spitzer et al. (1959) and 2) the granulometry is a continuous distribution of ellipsoids. All of this also applies to previously published laboratory SiC spectra. Within this framework, we can predict the spectra of the same powders if freely suspended in vacuum. Finally, using linear combination of these, it is possible to closely fit the various spectral shapes exhibited by the IRAS/LRS data for C-rich stars.

Affiliated with

Also associated with

No associations

Rating

Silicon carbide and the 11.3-mu M feature does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Silicon carbide and the 11.3-mu M feature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silicon carbide and the 11.3-mu M feature will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1650612