USTC Astronomy Seminar Series: 2026 Spring
Magnetar-Powered Stripped-Envelope Supernovae, Binary Origins, and Evidence for Stellar Companions
朱锦平 博士后
University of Hong Kong
2026/04/09, 2:30pm , the 19th-floor Observatory Hall

报告人:
Dr. Jinping Zhu (朱锦平) obtained his PhD in Astronomy from Peking University and his BS in Physics from Central China Normal University. He was an OzGrav Postdoctoral Fellow at Monash University and is currently a Global STEM Scholar Postdoctoral Fellow at the University of Hong Kong. His research focuses on multi-messenger astrophysics of compact object coalescences. He also studies high-energy transients, including gamma-ray bursts, supernovae, kilonovae, fast radio bursts, and transients in AGN accretion disks. He is also interested in using detailed binary evolution and population synthesis to explore the origins of supernovae and gravitational-wave sources.摘要:
Hydrogen-poor superluminous supernovae, Type Ic broad-lined supernovae, and fast blue optical transients are thought to originate from the core collapse of massive stars. Compared with ordinary supernovae, these explosions typically show higher explosion energies and more luminous lightcurve emission, suggesting the presence of an additional energy source following core collapse, possibly a magnetar central engine. In this talk, I will show that a magnetar central engine can provide a unified framework to explain both the similarities and differences among these transients. Using detailed binary evolution and population synthesis simulations, we find that helium stars formed through the isolated binary evolution channel can naturally reproduce the inferred properties of these events, including magnetar parameters, explosion properties, host metallicities, and event rates. Based on these results, we propose a unified physical classification and progenitor framework for magnetar-powered and ordinary stripped-envelope supernovae. Finally, I will discuss observational evidence suggesting the presence of stellar companions in these explosions.
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