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S. Hameed (Smith College/Umass-Amherst), N. Devereux (Embry-Riddle Aeronautical University)
We have been studying massive star formation properties of early-type spirals for the past few years. The presence of massive stars can be traced via both H\alpha and far-infrared (FIR) emission. The origin of FIR emission in early-type spirals, however, has been debated extensively in the published literature. Taking advantage of one of the most comprehensive H\alpha imaging surveys of nearby early-type spirals, we present here a comparison of H\alpha and FIR luminosities for a sample of 51 Sa-Sab galaxies and discuss our findings.
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Bulletin of the American Astronomical Society, 35#5
© 2003. The American Astronomical Soceity.