Evolution of Main-Sequence-link Surviving Companions in Type Ia Supernova Remnants

Shiau-Jie Rau^1,3,4*, Kuo-Chuan Pan^1,2,3,4

¹Physics Division, National Center for Therotical Sciences, Taipei, Taiwan
²Department of Physics, National Tsing Hua University, Hsinchu, Taiwan
³Institute of Astronomy, National Tsing Hua University, Hsinchu, Taiwan
⁴Center for Informatics and Computation in Astronomy, Hsinchu, Taiwan

* Presenter:Shiau-Jie Rau, email:cherrymow@gapp.nthu.edu.tw

Recent theoretical and numerical studies of Type Ia supernova explosion within the single-degenerate scenario suggest that the non-degenerate companions could survive the supernova impact and could be detectable in nearby supernova remnants. However, observational efforts show less promising evidence on the existence of surviving companions from the standard single-degenerate channels. Since the spin-down timescale for the delayed explosion of a rotating white dwarf is unclear, in this project, we explore a vast parameter space of main-sequence-like surviving companions via two-dimensional hydrodynamic simulations of supernova impact and the subsequent stellar evolution of surviving companions. Our results suggest that the not-yet detected surviving companions from observations of nearby Type Ia supernova remnants might favor low mass companions or stronger supernova explosion energies than the standard singe-degenerate channels.

Keywords: supernovae: general, methods: numerical, binaries: general