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Evolutionary models of red supergiants: Evidence for a metallicity-dependent mixing length and implications for Type IIP supernova progenitors
Sang-Hyun Chun, Sung-Chul Yoon, Moo-Keon Jung +2
Recent studies on the temperatures of red supergiants (RSGs) in the local universe provide us with an excellent observational constraint on RSG models. We calibrate the mixing leng…
Towards a better understanding of the evolution of Wolf-Rayet stars and Type Ib/Ic supernova progenitors
Sung-Chul Yoon
Hydrogen-deficient Wolf-Rayet (WR) stars are potential candidates of Type Ib/Ic supernova (SN Ib/Ic) progenitors and their evolution is governed by mass loss. Stellar evolution mod…
Immediate dense circumstellar environment of supernova progenitors caused by wind acceleration: its effect on supernova light curves
Takashi J. Moriya, Sung-Chul Yoon, Götz Gräfener +1
Type IIP supernova progenitors are often surrounded by dense circumstellar media that may result from mass-loss enhancement of the progenitors shortly before their explosions. Prev…
Radiative-transfer models for explosions from rotating and non-rotating single WC stars. Implications for SN1998bw and LGRB/SNe
Luc Dessart, D. John Hillier, Sung-Chul Yoon +2
Using 1-D non-Local-Thermodynamic-Equilibrium time-dependent radiative-transfer simulations, we study the ejecta properties required to match the early and late-time photometric an…
Type Ib and IIb supernova progenitors in interacting binary systems
Sung-Chul Yoon, Luc Dessart, Alejandro Clocchiatti
We explore properties of Type Ib and IIb SN progenitors that are produced by stable mass transfer in binary systems, using a new grid of stellar evolution models from an initial pr…