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Cygnus Superbubble as the remnant of a peculiar supernova

Sergei I. Blinnikov, В. С. Имшенник, В. П. Утробин

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Abstract

An analytic solution is obtained for the evolution of a supernova remnant during the radiative-cooling phase. The Cygnus Superbubble x-ray source could have been formed by the explosion of a single supernova releasing an energy of 10/sup 52/--10/sup 53/ erg. Analysis of the light curve of the NGC 1058 supernova 1961v demonstrates that it represents a roughly-equal2 x 10/sup 52/ erg outburst of a supermassive (roughly-equal10/sup 3/ M/sub sun/) star. Giant shell sources may form an evolutionary sequence, exemplified by R136a as the presupernova, supernova 1961v, and the Superbubble as the remnant.

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What this paper is about

An analytic solution is obtained for the evolution of a supernova remnant during the radiative-cooling phase. The Cygnus Superbubble x-ray source could have been formed by the explosion of a single supernova releasing an energy of 10/sup 52/--10/sup 53/ erg. Analysis of the light curve of the NGC 1058 supernova 1961v demonstrates that it represents a roughly-equal2 x 10/sup 52/ erg outburst of a supermassive (roughly-equal10/sup 3/ M/sub sun/) star. Giant shell sources may form an evolutionary sequence, exemplified by R136a as the presupernova, supernova 1961v, and the Superbubble as the remnant.

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Available abstract

An analytic solution is obtained for the evolution of a supernova remnant during the radiative-cooling phase. The Cygnus Superbubble x-ray source could have been formed by the explosion of a single supernova releasing an energy of 10/sup 52/--10/sup 53/ erg. Analysis of the light curve of the NGC 1058 supernova 1961v demonstrates that it represents a roughly-equal2 x 10/sup 52/ erg outburst of a supermassive (roughly-equal10/sup 3/ M/sub sun/) star. Giant shell sources may form an evolutionary sequence, exemplified by R136a as the presupernova, supernova 1961v, and the Superbubble as the remnant.

Key concepts: Superbubble, Supernova, Physics, Astrophysics, Supernova remnant, Astronomy, Erg, Type II supernova

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