Other
Scientific paper
Sep 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aipc..855..194d&link_type=abstract
ASTROCHEMISTRY: From Laboratory Studies to Astronomical Observations. AIP Conference Proceedings, Volume 855, pp. 194-200 (2006
Other
1
Interstellar Dust Grains, Diffuse Emission, Infrared Cirrus, Molecular Clouds, H2 Clouds, Dense Clouds, And Dark Clouds, Molecular And Chemical Processes And Interactions, Chemical Composition And Chemical Evolution
Scientific paper
Observed infrared spectra of interstellar matter are compared to laboratory data and are used to constrain the composition of carbonaceous material (molecules and dust) in interstellar clouds. It is found that variations in the relative abundance of CH2 and CH3 groups indicate changes in chemical environment. In particular, a high abundance of CH3 groups is indicative of a dynamic chemistry. The connection between molecules and dust is explored and it appears that large interstellar molecules are probably created by the destruction of dust particles in the vicinity of energetic sources. Using new lab data on the IR spectrum of long chain n-alkanes, it is shown that there is little evidence for molecules of this type in the ISM. On the other hand, other laboratory and theoretical spectra suggest that dehydrogenated aromatic hydrocarbon molecules such as C24Hx (dehydrogenated coronene) are important interstellar species.
No associations
LandOfFree
Carbonaceous Matter in the ISM 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 Carbonaceous Matter in the ISM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbonaceous Matter in the ISM will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-993999