Progenitor models of supernovae interacting with their binary companions

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Original abstract

The appearance of nearly all core-collapse (CC) supernovae (SNe) is largely affected by the interaction between their progenitors and a close binary companion. Using a comprehensive, state-of-the-art grid of single- and binary stellar evolution models, the relative frequencies of SN types are predicted, as well as the distribution functions of their main properties. SNe that interact with nearby circumstellar material are included, namely those that explode during ongoing binary mass transfer, and are found to account for ~5% of all CCSNe, consistently with observations. The interaction between the newly born compact object and the companion is also investigated, which may produce observable signatures similar to those seen in SN2022jli. These SNe could account for between 3% and 27% of all H-poor CCSNe. These results will help develop strategies for identifying such supernovae in past and future searches, which will help to constrain uncertain physics in single and binary evolution models.

Links and sources

• Official / arXiv page
• PDF from original source

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