Why are supernovae in our Galaxy so frequent

P.M. Dragicevich; David Blair; Ron Burman

doi:10.1046/j.1365-8711.1999.02145.x

Why are supernovae in our Galaxy so frequent

P.M. Dragicevich, David Blair, Ron Burman

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61 Citations (Web of Science)

Abstract

We show that if the observed surface density function of supernovae in external spiral galaxies is used to calibrate the historical data on the supernova rate in the solar neighbourhood, then the calculated total supernova rate for the Galaxy is abnormally high. This can be explained if Galactic supernovae are not uniformly distributed over the Galactic disc, but tend to be localized near spiral arms and star-forming regions. Such a distribution would be consistent with evidence for an association of Type Ib/c and Type II supernovae with H II regions in late-type galaxies. It seems that we occupy a privileged position in the Milky Way - one which gives us the impression of a considerably higher supernova rate than is valid for the Galaxy as a whole.

Original language	English
Pages (from-to)	693-699
Journal	Monthly Notices of the Royal Astronomical Society
Volume	302
Issue number	N/A
DOIs	https://doi.org/10.1046/j.1365-8711.1999.02145.x
Publication status	Published - 1999

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10.1046/j.1365-8711.1999.02145.x

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abstract = "We show that if the observed surface density function of supernovae in external spiral galaxies is used to calibrate the historical data on the supernova rate in the solar neighbourhood, then the calculated total supernova rate for the Galaxy is abnormally high. This can be explained if Galactic supernovae are not uniformly distributed over the Galactic disc, but tend to be localized near spiral arms and star-forming regions. Such a distribution would be consistent with evidence for an association of Type Ib/c and Type II supernovae with H II regions in late-type galaxies. It seems that we occupy a privileged position in the Milky Way - one which gives us the impression of a considerably higher supernova rate than is valid for the Galaxy as a whole.",

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AU - Blair, David

AU - Burman, Ron

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AB - We show that if the observed surface density function of supernovae in external spiral galaxies is used to calibrate the historical data on the supernova rate in the solar neighbourhood, then the calculated total supernova rate for the Galaxy is abnormally high. This can be explained if Galactic supernovae are not uniformly distributed over the Galactic disc, but tend to be localized near spiral arms and star-forming regions. Such a distribution would be consistent with evidence for an association of Type Ib/c and Type II supernovae with H II regions in late-type galaxies. It seems that we occupy a privileged position in the Milky Way - one which gives us the impression of a considerably higher supernova rate than is valid for the Galaxy as a whole.

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DO - 10.1046/j.1365-8711.1999.02145.x

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EP - 699

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - N/A

ER -

Why are supernovae in our Galaxy so frequent

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