Stellar Mass Distributions in Dwarf Irregular Galaxies

Details Stellar Mass Distributions in Dwarf Irregular Galaxies Stellar Mass Distributions in Dwarf Irregular Galaxies

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21714713z&link_type=abstract

American Astronomical Society, AAS Meeting #217, #147.13; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the radial distributions of the stellar mass and the star formation histories for a large sample of dwarf irregular galaxies assembled by the LITTLE THINGS project (Local Irregulars That Trace Luminosity Extremes The HI Nearby Galaxy Survey,
http://www.lowell.edu/users/dah/littlethings/index.html). Specifically, utilizing the multi-band data
including FUV/NUV/UBV/Hα/3.6μm, and with the CB07 stellar population synthesis models, we
analyze the variations of the SEDs as a function of radius. By studying the relationship between the
stellar mass, star formation histories, star formation and HI gas, we will discuss the possible star formation modes and the roles played by the stellar mass and gas in determining the star formation in dwarf irregular galaxies in general.
We gratefully acknowledge funding for this research from the National Science Foundation (AST-0707563).

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