Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21110524a&link_type=abstract
American Astronomical Society, AAS Meeting #211, #105.24; Bulletin of the American Astronomical Society, Vol. 39, p.932
Astronomy and Astrophysics
Astronomy
Scientific paper
Shocks from supernova are responsible for destruction of interstellar dust and possibly for the creation of poly aromatic hydrocarbons (PAHs, Jones et al 1996). However, the rate and effectiveness of the creation of PAHs in supernova shocks are largely unknown quantities. Only with the sensitivity and spatial resolution with SPITZER has it been possible to obtain high quality spectra of Galactic supernova remnants to examine if PAHs are indeed created in the shock.
We have undertaken a spectroscopic survey of the known supernovae in the Galaxy that were detected in the GLIMPSE survey. We present here new results on the presence of PAH in a subset of the supernovae, including RCW103 and G311.5-0.3, based on low resolution SPITZER IRS spectroscopy. The ratio of the ratio of the 11.3 micron feature (due to C-H bending) to the 15-20 micron PAH plateau (due to C-C-C bending) is investigated. We discuss the evolution of the PAH features across the supernova shell and use our spectra of a control field to disentangle the Galactic PAH features with those intrinsic to the supernova remnants. We further combine the IRS spectra with MIPS spectral observations to constrain the relative abundance of large and Small grains to the amount of PAH detected.
Andersen Morten
Hewitt Jacqueline
Reach William
Rho Jeonghee
No associations
LandOfFree
PAH Features in Supernova Remnants 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 PAH Features in Supernova Remnants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and PAH Features in Supernova Remnants will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1481074