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Supernovae in flocculent and grand design spirals

Journal Article · · Astrophys. J.; (United States)
DOI:https://doi.org/10.1086/164794· OSTI ID:6570588
The arm structure of supernovae host galaxies has been studied in order to ascertain whether or not spiral density waves have an impact on supernovae frequencies. The ensembles of Type I and Type II supernovae hosts contain identical fractions of grand design spirals consistent with the representations in control samples chosen without regard to supernovae production. The results suggest that a density wave does not greatly enhance the massive star formation rate per unit luminosity of a galaxy. Instead, star formation in most galaxies may be dominated by stochastic processes. 30 references.
Research Organization:
David Dunlap Observatory, Richmond Hill, Canada; Toronto Univ., Canada
OSTI ID:
6570588
Journal Information:
Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 311; ISSN ASJOA
Country of Publication:
United States
Language:
English

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