Infrared Observations of Star-Forming Dwarf Galaxies with Spitzer

Details Infrared Observations of Star-Forming Dwarf Galaxies with Spitzer Infrared Observations of Star-Forming Dwarf Galaxies with Spitzer

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.9318r&link_type=abstract

American Astronomical Society Meeting 205, #93.18; Bulletin of the American Astronomical Society, Vol. 36, p.1494

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present a study of the infrared properties of a sample of actively star-forming dwarf galaxies (MB >-18) drawn from the KPNO International Spectroscopic Survey. Nearby actively star-forming dwarf galaxies are possible analogs to the high redshift star-forming systems that serve as galactic building blocks in hierarchical galaxy formation scenarios. These galaxies are gas-rich, metal-poor systems undergoing bursts of star formation in the local universe. A subset of such objects from the line-flux limited objective-prism survey of Salzer et al. (2001) lie in the NOAO Bootes field, and have therefore been observed by Spitzer as part of the IRAC Shallow Survey. We use the IRAC data to measure the stellar mass in these galaxies. In addition, we examine whether these metal-poor dwarf galaxies show warm dust emission, and examine whether it traces the star formation as it does in normal disk galaxies.
J. L. Rosenberg would like to acknowledge the NSF Astronomy and Astrophysics Fellowship for support of this work. This work is based in part 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.

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