The Progenitors of Core-collapse Supernovae

Physics

Scientific paper

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Supernova Remnants, Stellar Clusters And Associations, Star Formation

Scientific paper

The first systematic searches for the progenitors of core-collapse supernovae are now over a decade old. Exciting results from the detections, and even non-detections, of the progenitors in archival pre-explosion imaging have provided important clues to the role of processes in massive star evolution in the build up to SN explosion, as well as to the nature of the SN explosion itself. Here I review results concerning the progenitors of recent Type IIP, IIb and Ibc SNe. Observations of the Red Supergiant progenitors of 20 local Type IIP SNe place important constraints on the progenitors to be stars of initial masses between 7 and 18Msolar. The lack of a detection of brighter, and hence more massive, RSG progenitors constitutes the Red Supergiant Problem. The problematic nature of directly observing the progenitors of hydrogen-poor Supernovae is discussed, with emphasis on the power of indirect observational constraints on their initial masses and breaking the degeneracy between the massive single star and lower mass binary star progenitor channels.

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