GOALS Observations of Star Formation and Nuclear Activity in the Luminous Infrared Galaxy UGC 2369

Details GOALS Observations of Star Formation and Nuclear Activity in the Luminous Infrared Galaxy UGC 2369 GOALS Observations of Star Formation and Nuclear Activity in the Luminous Infrared Galaxy UGC 2369

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21560203r&link_type=abstract

American Astronomical Society, AAS Meeting #215, #602.03; Bulletin of the American Astronomical Society, Vol. 36, p.1121

Astronomy and Astrophysics

Astronomy

Scientific paper

Preliminary analysis of star formation and AGN activity in the luminosity infrared galaxy (LIRG: LIR > 10^11 Lsun) UGC 2369 (z = 0.03) are presented. The galaxy has been observed as part of the Great Observatories All-sky LIRG Survey (GOALS), which is a space-based multi-wavelength survey of a complete sample of LIRGs in the Revised Bright Galaxy Sample (RBGS: f60um > 5.24 Jy). The HST ACS images show UGC 02369 to consist of two disk galaxies separated by 17 kpc - the northern edge-on galaxy is bifurcated by prominent dust lanes, and the southern face-on galaxy contains numerous star clusters with ages estimated from broad-band colors of 107 to 108 years. The Spitzer mid-IR imaging data show the southern galaxy to be the source of the infrared emission. Multiple mid-infrared continuum and spectroscopic diagnostics of UGC 2369 are consistent with the mid-infrared emission being due primarily to star formation. However, the detection of faint 24.3um [Ne V] emission line is indicative of at least a small contribution from an imbedded AGN.

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