3 papers
astro-ph.GA2018
Examining the class B-to-A shift of the 7.7 m PAH band with the NASA Ames PAH IR Spectroscopic Database
M. J. Shannon, C. Boersma
We present insights into the behavior of the astronomical 7.7 m polycyclic aromatic hydrocarbon (PAH) emission complex as gleaned from analyzing synthesized spectra, utilizing t…
astro-ph.GA2018
Polycyclic aromatic hydrocarbon emission toward the Galactic bulge
Matthew J. Shannon, Els Peeters, Jan Cami +1
We examine polycyclic aromatic hydrocarbon (PAH), dust and atomic/molecular emission toward the Galactic bulge using Spitzer Space Telescope observations of four fields: C32, C35,…
astro-ph.GA2016
Interpreting the subtle spectral variations of the 11.2 and 12.7 μm polycyclic aromatic hydrocarbon bands
M. J. Shannon, D. J. Stock, E. Peeters
We report new properties of the 11 and 12.7 μm emission complexes of polycyclic aromatic hydrocarbons (PAHs) by applying a Gaussian-based decomposition technique. Using high-resolu…