Star Formation Activity Depending on Size of Galaxy

Details Star Formation Activity Depending on Size of Galaxy Star Formation Activity Depending on Size of Galaxy

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999sf99.proc...50t&link_type=abstract

Star Formation 1999, Proceedings of Star Formation 1999, held in Nagoya, Japan, June 21 - 25, 1999, Editor: T. Nakamoto, Nobeyam

Physics

Scientific paper

We statistically analyzed U-V colors of 552 Sa to Sc galaxies and investigated the star formation history depending on physical size of galaxy. We made size vs U-V diagram for each morphology, Sa, Sb, and Sc, and found that in all three morphologies smaller-sized galaxies have larger dispersions in U-V. We converted the U-V color to a star formation rate (SFR) ratio, present-to-past averaged SFR; the dispersion in the color for the smaller-sized galaxies implies an intermittent character in their star formation histories.

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