演講資訊

摘要：

Several Type I Superluminous Supernovae (SLSNe-I) exhibit light curves with multiple bumps or modulations. These features are difficult to be explained by the standard magnetar model, which typically predicts a relatively smooth luminosity evolution. To account for the observed variability, some studies have proposed scenarios involving interaction between the supernova ejecta and surrounding circumstellar material (CSM). However, systematic analyses of the currently limited sample of SLSNe-I light curves have not found compelling observational evidence supporting widespread CSM interaction as the primary cause of these bumps. As a potential alternative, a recent model proposed by Farah et al. (10.48550/arXiv.2509.08051) introduces a Lense–Thirring precessing magnetar engine, in which precession of the magnetar spin axis modulates the energy injection into the ejecta, naturally producing the observed light-curve variations.