Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...204..138p&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 204, no. 1-2, Oct. 1988, p. 138-146.
Astronomy and Astrophysics
Astronomy
32
Carbon, Infrared Astronomy Satellite, Infrared Signatures, Late Stars, Stellar Spectra, Color-Color Diagram, Spectral Resolution
Scientific paper
The systematic application to the IRAS Catalog of Low Resolution Spectra (LRS) of a smoothing and averaging procedure described in previous papers uncovers the existence of 3 different types of spectral shapes which display the 11.3 μm feature ususally assigned to SiC and considered a signpost of C-rich stars. Most optical spectral types identified in the present sample are associated with only one of the spectral types: that which is matched by polluted α-SiC laboratory grains. Finally, 24 spectra with an SiC feature (i.e. associated with carbon-rich circumstellar shells) were found to be associated with oxygen-rich photospheres (i.e. stars of optical spectral type M). The present sample of objects differs in many respects from optically selected samples of carbon stars; its circumstellar shells are thicker and colder.
No associations
LandOfFree
The multiple IR signatures of C-rich sources in the IRAS low-resolution spectra 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 The multiple IR signatures of C-rich sources in the IRAS low-resolution spectra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The multiple IR signatures of C-rich sources in the IRAS low-resolution spectra will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1597131