Identifying a Point-Symmetrical Morphology in the Core-Collapse Supernova Remnant W44
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 jets explosion mechanism (JJEM). Motivated by recent identifications of point-symmetrical morphologies in CCSNRs and their match to the...
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MDPI AG
2024-12-01
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| Series: | Universe |
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| Online Access: | https://www.mdpi.com/2218-1997/11/1/4 |
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| author | Noam Soker |
| author_facet | Noam Soker |
| author_sort | Noam Soker |
| collection | DOAJ |
| description | 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 jets 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. |
| format | Article |
| id | doaj-art-648a8fea10bd44cd8d2176671f0c9b0e |
| institution | Kabale University |
| issn | 2218-1997 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Universe |
| spelling | doaj-art-648a8fea10bd44cd8d2176671f0c9b0e2025-01-24T13:51:27ZengMDPI AGUniverse2218-19972024-12-01111410.3390/universe11010004Identifying a Point-Symmetrical Morphology in the Core-Collapse Supernova Remnant W44Noam Soker0Department of Physics, Technion-Israel Institute of Technology, Haifa 3200003, IsraelI 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 jets 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.https://www.mdpi.com/2218-1997/11/1/4supernovae: generalstars: jetsISM: supernova remnantsstars: massive |
| spellingShingle | Noam Soker Identifying a Point-Symmetrical Morphology in the Core-Collapse Supernova Remnant W44 Universe supernovae: general stars: jets ISM: supernova remnants stars: massive |
| title | Identifying a Point-Symmetrical Morphology in the Core-Collapse Supernova Remnant W44 |
| title_full | Identifying a Point-Symmetrical Morphology in the Core-Collapse Supernova Remnant W44 |
| title_fullStr | Identifying a Point-Symmetrical Morphology in the Core-Collapse Supernova Remnant W44 |
| title_full_unstemmed | Identifying a Point-Symmetrical Morphology in the Core-Collapse Supernova Remnant W44 |
| title_short | Identifying a Point-Symmetrical Morphology in the Core-Collapse Supernova Remnant W44 |
| title_sort | identifying a point symmetrical morphology in the core collapse supernova remnant w44 |
| topic | supernovae: general stars: jets ISM: supernova remnants stars: massive |
| url | https://www.mdpi.com/2218-1997/11/1/4 |
| work_keys_str_mv | AT noamsoker identifyingapointsymmetricalmorphologyinthecorecollapsesupernovaremnantw44 |