Speaker
Description
Super-Chandrasekhar (03fg-like) Type Ia supernovae remain among least understood subclasses of thermonuclear explosions, their high luminosity have been attributed to various scenarios, including rotating massive WDs and interaction with circum-stellar medium (CSM). While 03fg-like SNe exhibit similar photometric evolution as those normal SNe Ia, they show a significantly more rapid decline during the late-time phase (after 100-200 days after maximum). In particular, a luminosity excess at the same phases observed for longer wavelengths suggests potential dust formation in these events. To investigate whether these late-time characteristics are universal features of 03fg-like SNe and to explore their diversity, we compiled a sample of 03fg-like SNe with well-observed light curves from the Zwicky Transient Facility (ZTF) and the Lulin One-meter Telescope (LOT) to monitor their late-time evolution. By comparing their late-time decline rate with those of normal SNe Ia, we aim to constrain the underlying explosion mechanism.
| Participate the oral/poster presentation award competition | Yes |
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