Multi-wavelength Morphological Study Of Star Forming Regions In Nearby Cluster-rich Lirgs

Details Multi-wavelength Morphological Study Of Star Forming Regions In Nearby Cluster-rich Lirgs Multi-wavelength Morphological Study Of Star Forming Regions In Nearby Cluster-rich Lirgs

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21441611v&link_type=abstract

American Astronomical Society, AAS Meeting #214, #416.11; Bulletin of the American Astronomical Society, Vol. 41, p.684

Astronomy and Astrophysics

Astronomy

Scientific paper

Luminous Infrared Galaxies (LIRGs) are believed to play an important role in star formation history of the universe. Many LIRGs undergo intense bursts of star formation as a result of interaction/merger process.
Given the dusty nature of LIRGs, it is necessary to probe Luminous Infrared Galaxies at multiple wavelengths. The Great Observatories All-sky LIRG Survey (GOALS) combines data from NASA's Spitzer, Hubble, Chandra and GALEX observatories and offers a unique opportunity to gain insights into the physical processes in these highly dust enshrouded systems.
We examine a sample of 11 nearby (z < 0.03) cluster-rich (> 200 clusters as seen in HST ACS images) LIRG systems at various interaction stages. The combined HST ACS optical imaging, Spitzer IRAC 8 micron channel and GALEX near-UV imaging allows us to access the properties of visible and obscured star forming regions. We study the spatial distribution of star forming regions at these wavelengths, correlate locations of young stellar clusters with PAH and UV emission regions and trace changes with merger stage.

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