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arXiv · 2609.11629

One Precessing Jet Pair, Diverse Core-Collapse Supernova Remnant Morphologies

Jessica Braudo·Noam Soker
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Abstract

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.

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Jessica Braudo, Noam Soker. 2026-09-10. One Precessing Jet Pair, Diverse Core-Collapse Supernova Remnant Morphologies. https://arxiv.org/abs/2609.11629

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