中国科学院云南天文台学术报告通知

2026年第33期

报告题目：The primary role of jets in powering core-collapse supernovae

报告人：Prof. Noam Soker

报告人单位：Technion – Israel Institute of Technology

报告语言：English

报告时间：2026年7月31日（星期五）10:30-11:30

报告地点：科研1号楼412会议室

报告摘要：

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I will present evidence in core-collapse supernova remnants for the action of jets in the supernova explosion process. I will mention the three iconic and most heavily studied core-collapse supernova remnants: The Crab Nebula, Cassiopeia A, and SN 1987A—all with clear and robust indications of shaping by jets that carry most of the explosion energy. Two main types of observations appear in many, but not all, core-collapse supernova remnants: (i) the well-established presence of a pair of opposite `ears’ and (ii) the recently identified point-symmetrical structure in 20 remnants. The pair of opposite ears suggests that two opposite jets inflate the ears. The point-symmetrical structure results from two or more pairs of jets along different axes, as the jittering jets explosion mechanism (JJEM) predicts. I will compare the JJEM with the neutrino-driven mechanism and conclude that the latter falls short of explaining observations, leaving the JJEM as the primary explosion mechanism of CCSNe.

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报告人简介： 

Noam Soker earned his PhD in 1986 at the Technion – Israel Institute of Technology. After postdoctoral positions at the University of Virginia and the Center for Astrophysics, Harvard-Smithsonian, he returned to Israel in 1992. Since 2003, he has been a professor at the Technion. He studies the death of stars, from planetary nebulae to supernovae.

云台邀请方：大样本恒星演化研究团组、国际超新星中心、云南省国际超新星研究重点实验室

邀请方联系人：贾石