Supernova statistics and related problems

Computer Science

Scientific paper

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Pulsars, Statistical Analysis, Stellar Magnitude, Stellar Mass Accretion, Supernovae, White Dwarf Stars, Binary Stars, Stellar Evolution, Stellar Luminosity, Stellar Mass

Scientific paper

The frequencies of supernovae in external galaxies and in our Galaxy are examined. The galactic frequencies of supernovae are compared to the frequencies of supernovae remnants, pulsars, and white dwarfs. The absolute magnitudes of the two types of supernovae, SN I and SN II, are analyzed, as well as the evidence that SN I supernovae are good standard candles. Possible progenitors of supernovae are proposed, and it is shown that these speculations are consistent with the assumption that SN II supernovae come from stars with masses of greater than 8 solar masses, while SN I supernovae could come from accreting white dwarfs in close binary systems.

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