Computer Science – Sound
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21348611f&link_type=abstract
American Astronomical Society, AAS Meeting #213, #486.11; Bulletin of the American Astronomical Society, Vol. 41, p.460
Computer Science
Sound
Scientific paper
We present archival Spitzer Space Telescope data for six photodissociation regions (PDRs) as part of a multiwavelength study of the relationship between Polycyclic Aromatic Hydrocarbons (PAHs), molecular hydrogen (H2) and the local UV radiation field. Our sample is a diverse group of nebulae including the reflection nebulae NGC7023, NGC2023, IC405, IC63, Planetary Nebula M27 and HII region M42. PAH ionization maps were generated from the 7.7/11.3 µm ratio of C-C bond stretching to C-H bond out-of-plane bending modes. These maps are contrasted with IR derived H2 and dust temperature maps in an effort to characterize the radiation environment of each PDR. Ultimately this data will be compared to FUV observations from FUSE and JHU sounding rockets to characterize the relationship between UV field strength, H2 absorption excitation and the level of PAH and H2 emission.
Fleming Brian
France Kevin
Lupu Roxana
McCandliss Stephan
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