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An analysis of data from the Spitzer Space Telescope, Hubble Space Telescope,Chandra X-ray Observatory, and AKARI Infrared Astronomy Satellite is presentedfor the z=0.036 merging galaxy system II Zw 096 (CGCG 448-020). Because II Zw096 has an infrared luminosity of log(L_IR/L_sun) = 11.94, it is classified asa Luminous Infrared Galaxy (LIRG), and was observed as part of the GreatObservatories All-sky LIRG Survey (GOALS). The Spitzer data suggest that 80% ofthe total infrared luminosity comes from an extremely compact, red source notassociated with the nuclei of the merging galaxies. The Spitzer mid-infraredspectra indicate no high-ionization lines from a buried active galactic nucleusin this source. The strong detection of the 3.3 micron and 6.2 micron PAHemission features in the AKARI and Spitzer spectra also implies that the energysource of II Zw 096 is a starburst. Based on Spitzer infrared imaging and AKARInear-infrared spectroscopy, the star formation rate is estimated to be 120M_sun/yr and > 45 M_sun/yr, respectively. Finally, the high-resolution B, I,and H-band images show many star clusters in the interacting system. The colorsof these clusters suggest at least two populations - one with an age of 1-5 Myrand one with an age of 20-500 Myr, reddened by 0-2 magnitudes of visualextinction. The masses of these clusters span a range between 10^6-10^8 M_sun.This starburst source is reminiscent of the extra-nuclear starburst seen in NGC4038/9 (the Antennae Galaxies) and Arp 299 but approximately an order ofmagnitude more luminous than the Antennae. The source is remarkable in that theoff-nuclear infrared luminosity dominates the enitre system.

The Buried Starburst in the Interacting Galaxy II Zw 096 as Revealed by the Spitzer Space Telescope