The Role of HI in the Star-Formation Processes in Spiral Disks

J. Knapen, J.E. Beckman

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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    Abstract

    We discuss recent work on massive star-formation efficiency parameters on 1 kpc scales in grand-design spiral galaxies. The fact that in two galaxies studies in detail, M51 and NGC 4321, the massive star-formation efficiency in the arms is larger than that outside the arms can be seen as evidence for large-scale triggering of the star formation in the arms, probably induced by a density wave system. We discuss several possible systematic effects, but infer that the conclusions on triggering are sound.
    Original languageEnglish
    Title of host publicationIn: Physics of the Gaseous and Stellar Disks of the Galaxy - ASP Conf Series 66
    PublisherAstronomical Society of the Pacific
    Pages329-336
    ISBN (Print)0-937707-85-6
    Publication statusPublished - 1994

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