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The Evidence for Massive Star Formation in Early-Type Spiral Galaxies

Salman Hameed·Nick Devereux
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Abstract

A recent analysis of the IRAS database indicates that the massive star formation rates in early-type (Sa-Sab) spirals are comparable to the massive star formation rates in late-type spirals. $Hα$ imaging of some of the infrared luminous early-type spirals reveals two types of galaxies. One type shows clear signs of interaction, whereas the other type appears to host a nuclear starburst. The occurence of nuclear starbursts in early-type spirals may be related to the propensity for such galaxies to also host Seyfert nuclei. The evidence for interactions suggests that early-type spirals are evolving in the current epoch.

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Salman Hameed, Nick Devereux. 1996-12-19. The Evidence for Massive Star Formation in Early-Type Spiral Galaxies. https://doi.org/10.1063/1.52760

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