一对进动喷流，多样核心坍缩超新星遗迹形态
One Precessing Jet Pair, Diverse Core-Collapse Supernova Remnant Morphologies
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中文总结 AI 辅助
本研究通过三维模拟发现，单一对进动喷流可产生多种核心坍缩超新星遗迹形态，支持喷流在超新星爆炸中的关键作用及JJEM机制。
中文摘要 AI 辅助
我们利用抖动喷流爆炸机制（JJEM）框架中的一对进动反向喷流，产生了一组多样化的观测到的核心坍缩超新星（CCSN）型形态。我们进行了三维流体动力学模拟，模拟一对进动喷流爆炸一颗大质量恒星，并发现单一对进动的反向喷流可以产生S形结构、在天鹅座环中观测到的管道-喷口-吹破特征、类似于S147中某些形态特征的多对明显的反向突起，以及具有显著棒状结构的H形结构，类似于在3C 397遗迹中观测到的结构。在小尺度上，喷流形成团块和丝状结构，这些结构源于喷流在与恒星物质相互作用时在抛射物中引起的不稳定性和涡旋。我们并非旨在模拟任何特定的CCSN遗迹，而是探索由此产生的形态特征。我们模拟出的特征与观测到的特征相似，这一发现支持了喷流在爆炸CCSNe中的作用，进而支持了JJEM是CCSNe主要爆炸机制的主张。
英文摘要
We produce a diverse set of observed core-collapse supernova (CCSN)-type morphologies using a precessing pair of opposite jets within the jittering-jets explosion mechanism (JJEM) framework. We conduct a three-dimensional hydrodynamical simulation of a precessing pair of jets that explode a massive star, and find that a single precessing pair of opposite jets can generate S-shaped structures, pipe-spout-blowout features as observed in the Cygnus Loop, multiple apparent pairs of opposite protrusions similar to some morphological features in S147, and H-shaped structures with a prominent bar, similar to the one observed in the 3C 397 remnant. At small scales, the jets form clumps and filaments, resulting from instabilities and vortices that the jets induce in the ejecta as they interact with the stellar material. We did not aim the simulation to reproduce any particular CCSN remnant, but rather to explore the resulting morphological features. Our finding of simulated features similar to observed ones supports the role of jets in exploding CCSNe and, in turn, supports the claim that the JJEM is the primary explosion mechanism of CCSNe.
发表机构
- Technion - Israel Institute of Technology（以色列理工学院）
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