Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...388..639p&link_type=abstract
Astronomy and Astrophysics, v.388, p.639-651 (2002)
Astronomy and Astrophysics
Astrophysics
53
Infrared: Ism, Ism: Lines And Bands, Line: Profiles, Ism: General
Scientific paper
Using a compilation of the photophysical properties of molecules such as coronene, C24H12, we have constructed a numerical model to calculate the IR emission spectrum of a population of polycyclic aromatic hydrocarbon (PAH) species subjected to UV photons. The model enables us to calculate not only the energy emitted in the IR bands but also the detailed band profiles. The calculated spectrum for a PAH size distribution following NC-3.5 with NCmin=30 was found to provide a good match to the Aromatic Infrared Bands (AIBs) observed in the planetary nebula IRAS 21282+5050. The match is especially good for the intensities and for the profiles of the 6.2 and 11.3 mu m bands. This work provides a coherent picture of the AIB problem supporting the PAH molecular hypothesis. It further underlines the poor spectral diversity contained in the AIB spectrum putting new constraints on the nature of the emitting population.
Boissel Pierre
Joblin Ch.
Pech Catherine
No associations
LandOfFree
The profiles of the aromatic infrared bands explained with molecular carriers 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 profiles of the aromatic infrared bands explained with molecular carriers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The profiles of the aromatic infrared bands explained with molecular carriers will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1893142