Spitzer commissioning observations of the interacting spiral galaxy NGC2442

Details Spitzer commissioning observations of the interacting spiral galaxy NGC2442 Spitzer commissioning observations of the interacting spiral galaxy NGC2442

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...204.4124l&link_type=abstract

American Astronomical Society Meeting 204, #41.24; Bulletin of the American Astronomical Society, Vol. 36, p.725

Astronomy and Astrophysics

Astronomy

Scientific paper

The southern peculiar barred spiral galaxy NGC2442 was observed as a commissioning target during the science verification phase of the Spitzer mission by both the IRAC and MIPS instruments. NGC2442 has a disturbed morphology apparently resulting from the interaction with a dwarf galaxy in the same group. Star-forming regions are spread throughout the arms, but are concentrated in the Northern spiral arm and tend to avoid the bar. The nucleus contains a starburst ring and a weak LINER nucleus with distinct mid-infrared colors. This galaxy provides an interesting example of an apparent association of starburst and nuclear activity, and is a good demonstration that many of the much more distant galaxies which will be found in surveys with Spitzer probably have a composite nature that may not be apparent in an integrated infrared SED.
This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under NASA contract 1407. Support for this work was provided by NASA through an award issued by JPL/Caltech.

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