IRAS observations of irregular galaxies

Details IRAS observations of irregular galaxies IRAS observations of irregular galaxies

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987nascp2466..253h&link_type=abstract

Star formation in galaxies, Proceedings of a conference at the California Institute of Technology, Pasadena, California, June 16

Astronomy and Astrophysics

Astronomy

2

Dust, Irregular Galaxies, Nebulae, Star Formation, Stellar Color, Abundance, Grain Size, Infrared Astronomy Satellite, Metallicity, Temperature Measurement

Scientific paper

Normal irregular galaxies seem to be unusual in having vigorous star formation yet lacking the many dark nebulae typical of spirals. The Infrared Astronomy Satellite (IRAS) observations of a large sample of irregulars are used to explore the dust contents of these galaxies. Compared to normal spirals, the irregulars generally have higher LIR/L sub B ratios, warmer f(100)/f(60) dust color temperatures, and lower globally-averaged dust/gas ratios. The relationship between the infrared data and various global optical properties of the galaxies is discussed.

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