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The origin of the infrared emission in radio galaxies II: analysis of mid- to far-infrared Spitzer observations of the 2Jy sample
D. Dicken, C. Tadhunter, D. Axon +5
We present an analysis of deep mid- to far-infrared (MFIR) Spitzer photometric observations of the southern 2Jy sample of powerful radio sources (0.05 < z < 0.7), conducting a stat…
The Mid-Infrared [SIV]/[NeII] versus [NeIII]/[NeII] Correlation
Brent Groves, Bas Nefs, Bernhard Brandl
The mid-infrared ratio [NeIII]15.6mum/[NeII]12.8mum is a strong diagnostic of the ionization state of emission line objects, due to its use of only strong neon emission lines only…
The MAPPINGS III Library of Fast Radiative Shock Models
Mark G. Allen, Brent A. Groves, Michael A. Dopita +2
We present a new library of fully-radiative shock models calculated with the MAPPINGS III shock and photoionization code. The library consists of grids of models with shock velocit…
Extended silicate dust emission in PG QSOs
M. Schweitzer, B. Groves, H. Netzer +9
This paper addresses the origin of the silicate emission observed in PG QSOs, based on observations with the Spitzer Space Telescope. Scenarios based on the unified model suggest t…
Modelling the Pan-Spectral Energy Distribution of Starburst Galaxies: IV The Controlling Parameters of the Starburst SED
B. Groves, M. Dopita, R. Sutherland +5
We combine the the stellar spectral synthesis code Starburst99, the nebular modelling code MAPPINGSIII, and a 1-D dynamical evolution model of HII regions around massive clusters o…
Spatially Resolved Spitzer-IRS Spectroscopy of the Central Region of M82
P. Beirão, B. R. Brandl, P. N. Appleton +6
We present high spatial resolution (~ 35 parsec) 5-38 um spectra of the central region of M82, taken with the Spitzer Infrared Spectrograph. From these spectra we determined the fl…