Lunch talk on Nov. 22, 2021

Type I Superluminous Supernovae

Speaker: Weili Lin (Tsinghua University)

Venue: Video Conference

Time: 12:30 PM, Monday, Nov. 22, 2021

Abstract: 

Superluminous supernovae (SLSNe) represent a rare subtype of supernovae that are 10-100 times brighter than ordinary stellar explosions. These SLSNe have been a focus of intensive study over the past decade. In this talk, I will focus on Type I SLSNe I (hydrogen-poor subclass; SLSNe I) characterized by oxygen absorption in the early-time spectra, and present a brief review on the accumulated observations of SLSNe I, including the features of their photometry, spectroscopy and environment. I will also introduce the potential power sources (e.g., magnetar wind, fallback accretion, ejecta-circumstellar matter interaction and magnetar-disk system) behind their extreme luminosities. It is highlighted that our magnetar-disk powered model provides a natural explanation for the light curves of both SLSNe I and SNe Ic-BL.

Report PPT:  SWIFAR_Weili Lin.pdf