Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21533506p&link_type=abstract
American Astronomical Society, AAS Meeting #215, #335.06; Bulletin of the American Astronomical Society, Vol. 42, p.435
Astronomy and Astrophysics
Astronomy
Scientific paper
We present spectral maps of the reflection nebula NGC2023 obtained with the SL and SH mode of the Infrared Spectrograph (IRS) on board the Spitzer Space Telescope. These infrared spectra are dominated by emission from Polycyclic Aromatic Hydrocarbons (PAHs). We analyzed the intensity of the PAH bands present in the 5 to 20 um range across the maps. Aside from the main PAH bands, this includes weaker bands at 5.7, 11.0, 12.0, 13.5 and 14.2 um, the components of the long wavelength emission between 15 and 20 um and the broad plateaus underlying the PAH bands in the 5-10, 10-15 and 15-20 um regions. These observations clearly illustrate that the detailed characteristics of the IR emission features vary across the reflection nebula and that different groupings of PAH bands correlate spatially across the nebula. We interpret these differences in spatial behavior in terms of variations in PAH characteristics such as size, charge and structure with the changing environment across the nebula.
Allamandola Louis J.
Peeters Els
Tielens Alexander G. G. M.
Wolfire Mark G.
No associations
LandOfFree
Classification Of The PAH Emission Bands In The Reflection Nebula NGC2023 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 Classification Of The PAH Emission Bands In The Reflection Nebula NGC2023, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Classification Of The PAH Emission Bands In The Reflection Nebula NGC2023 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-962054