Chemical Evolution of Carbonaceous Materials in the Last Stages of Stellar Evolution

Details Chemical Evolution of Carbonaceous Materials in the Last Stages of Stellar Evolution Chemical Evolution of Carbonaceous Materials in the Last Stages of Stellar Evolution

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...19511007k&link_type=abstract

American Astronomical Society, 195th AAS Meeting, #110.07; Bulletin of the American Astronomical Society, Vol. 31, p.1536

Astronomy and Astrophysics

Astronomy

Scientific paper

The out-of-plane bending modes of aromatic C-H bond at 11.3, 12.1, 12.4, and 13.3 μ m were detected in the ISO SWS spectra of the proto-planetary nebulae IRAS 07134+1005 and IRAS 22574+6609. In addition, unidentified emission features at 17.8, 18.9, and 19.1 μ m were detected in the SWS01 and SWS06 spectra of IRAS 07134+1005. The similar strengths of the 12.1, 12.4, and 13.3 μ m features relative to the 11.3 μ m feature, together with the presence of strong aliphatic CH bands at 3.4 and 6.9 μ m, demonstrate a lower aromaticitiy of the emitting material, compared to those at the later planetary nebulae stage. This suggests a chemical and physical evolution of the carbonaceous dust during the transition between these two phases.

Affiliated with

Also associated with

No associations

Rating

Chemical Evolution of Carbonaceous Materials in the Last Stages of Stellar Evolution 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 Chemical Evolution of Carbonaceous Materials in the Last Stages of Stellar Evolution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemical Evolution of Carbonaceous Materials in the Last Stages of Stellar Evolution will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1747747