Progenitor stars of Type Ib and Type Ic supernovae: model predictions, and constraints from pre-supernova searches and supernova

Prof. Sung-Chul Yoon (Seoul National University)
Tuesday, May 18, 2021 - 10:00am

The evolution of massive stars is critically affected by mass loss due to stellar winds and/or binary interactions. In this regard, Type Ib and Ic supernovae can provide an important constraint on stellar evolution theory, given that their progenitors must have lost their hydrogen envelopes during the post main sequence phase. In this talk I will first briefly explain what stellar evolution models predict about the properties of Type Ib and Ic progenitors. Then I will discuss the implications of previous search results for Type Ib/Ic progenitors in pre-supernova images, including the progenitor candidates of iPTF13bvn, SN2017ein, and SN 2019yvr, for the nature of the progenitor stars. In the last part of the talk, I will discuss how to test the theoretical model predictions using supernova light curves. In particular, one of the key questions to be addressed here will be what makes Type Ic progenitors distinguished from Type Ib progenitors.

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