Other
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21342433p&link_type=abstract
American Astronomical Society, AAS Meeting #213, #424.33; Bulletin of the American Astronomical Society, Vol. 41, p.251
Other
Scientific paper
We investigate the star-formation, and dust properties and distribution across the nearby tidally distorted galaxy NGC2442. The principle data we use include Spitzer IRAC3.6, 4.5, 5.8, and 8.0 microns, MIPS24 microns as well as GALEX FUV and NUV images sampling between 100 and 400pc in physical scale. We create masks to isolate specific regions of interests including the nucleus, the nuclear star-forming ring, the spiral arms, the knots of enhanced star-formation in the spiral arms, a diffuse region as well as a recent supernova remnant (from SN1999GA). We study the SED properties of these different regions, and compare them with other samples of interacting and non-interacting galaxies in several infrared and UV-infrared color-color plots. In particular we compare our findings with the exhaustive study of the SINGS galaxy M51 by Calzetti et al. Our goal is to examine the details of star-formation triggering in the early (pre-merger) stages of galaxy interactions and thus provide a benchmark for future simulations of this process. Funding is provided by NASA through a grant issued to JPL/Caltech.
Pancoast Anna
Sajina Anna
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