A historical supernova's lower limit to the galactic stellar-collapse rate

Details A historical supernova's lower limit to the galactic stellar-collapse rate A historical supernova's lower limit to the galactic stellar-collapse rate

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990stin...9028472f&link_type=abstract

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Physics

Collapse, Extinction, Galactic Evolution, Histories, Supernovae, Galaxies, Heavy Elements, Rates (Per Time), Scale Height

Scientific paper

The rate of galactic supernova given by historical supernova is re-investigated. The influence of various selection effects, including galactic extinction, and the type and scale height of supernova, are considered in detail. A lower limit to the rate of stellar collapse in the galaxy is set at greater than 1/20 yr. If the recently proposed six candidates are included, the lower limit becomes greater than 1/12 yr. These lower limits do not greatly differ from the rates given by the heavy element content and the stellar formation of the galaxy. This implies that the variation and the activity in galactic evolution may not be very strong.

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