The Spatial Distribution of Warm Dust and PAH in Luminous Infrared Galaxies
PI:
Jason Melbourne
Co-I(s):
Lee Armus, Joe Jensen, Jason Surace, Joe Mazzarella, Aaron Evans, Justin Howell
Abstract
We request 3.5 nights on Gemini-S with T-ReCS and 3.5 nights on Gemini-N with Michelle, for MIR imaging of a statistically complete set of 29 low redshift luminous infrared galaxies (LIRGs) that span the merger sequence. They have been selected such that Gemini will resolve super star clusters (SSCs) within their cores ($R< 125$ pc). We will image in the N' and Si(5) filters to map both the warm dust continuum and PAH emission. We will measure the frequency, size, and luminosity of SSCs as a function of galaxy morphology to test against models for star formation in mergers. We will also measure the size of the PAH-free zone around AGN to investigate the role of AGN feedback on the IGM. This sample will triple the number of LIRGs for which these data are available.
Publications using this program's data
[data][ADS] The subarcsecond mid-infrared view of local active galactic nuclei - I. The N- and Q-band imaging atlas
[data][ADS] Nuclear obscuration in LINERs. Clues from Spitzer/IRS spectra on the Compton thickness and the existence of the dusty torus
[data][ADS] A mid-infrared statistical investigation of clumpy torus model predictions
[data][ADS] Active Galactic Nucleus Ghosts: A Systematic Search for Faded Nuclei
[data][ADS] On the origin of X-ray oxygen emission lines in obscured AGN