Identifying a point-symmetrical morphology in the core-collapse supernova remnant W44

Autor:	Soker, Noam
Rok vydání:	2024
Předmět:	Astrophysics - High Energy Astrophysical Phenomena
Druh dokumentu:	Working Paper
Popis:	I identify a point-symmetrical morphology in the core-collapse supernova remnant (CCSNR) W44 compatible with shaping by three or more pairs of jets in the jittering jet explosion mechanism (JJEM). Motivated by recent identifications of point-symmetrical morphologies in CCSNRs and their match to the JJEM, I revisit the morphological classification of CCSNR W44. I examine a radio map of W44 and find the outer bright rim of the radio map to possess a point-symmetric structure compatible with shaping by two energetic pairs of opposite jets rather than an S-shaped morphology shaped by a precessing pair of jets. An inner pair of filaments might hint at a third powerful pair of jets. More pairs of jets were involved in the explosion process. This study adds to the growing evidence that the JJEM is the primary explosion mechanism of core-collapse supernovae. Comment: Will be submitted in 4 days to allow for comments (including missing references)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2411.04654 Zobrazit plný text záznamu View this record from Arxiv