Star Formation in Early-type Spirals

Details Star Formation in Early-type Spirals Star Formation in Early-type Spirals

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40349f&link_type=abstract

Spitzer Proposal ID #40349

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Scientific paper

Recent studies of nearby early-type (Sa-Sab) spiral galaxies have revealed a significant fraction (~30%) which are actively forming stars. It has been suggested that past close encounters or minor mergers may be inducing activities in these systems, which would otherwise remain quiescent and passively evolve. We propose to perform IRAC and MIPS observations to measure the distribution and luminosity function of the star-forming regions in a selected sample of these galaxies. The data, when combined with ground-based narrow-band imaging and broad-band SED studies, can provide a definitive explanation to how star formation is affected by interactions, and address to what extent these can be considered as an essential part of galactic evolution.

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