H-Alpha Images of Early-Type(Sa-Sab) Spirals
with Giant H-II Regions
The galaxies in this category have at least one H-II with L(H-Alpha) >
10^39 ergs/s. Dust lanes and tidal tails are present in all
of these galaxies. Despite the fact that extinction is an
important factor in these dusty galaxies, early-type spirals
with the highest H-alpha luminosity belong exclusively to
this category. All galaxies in the category have high
far-infrared luminosities, L(FIR)>10^10L(solar), comparable
to the prototypical starburst galaxy, M82.
NGC 986
NGC 972
1108-48
NGC 5915
NGC 7552
NGC 7582
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