JWST data reconstructs the inner ejecta of SNR 0540-69.3 as two similar-sized fragmented lobes, implying a ~300 km/s pulsar kick under symmetry assumption and confirming low-velocity hydrogen mixing in a Type II explosion.
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Analysis of JWST observations identifies point-symmetric morphology in SNR 0540-69.3 ejecta, interpreted as evidence for shaping by at least three jet pairs in the jittering-jets explosion mechanism.
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Exploring the central region of SNR 0540-69.3 with JWST I: 3D morphology
JWST data reconstructs the inner ejecta of SNR 0540-69.3 as two similar-sized fragmented lobes, implying a ~300 km/s pulsar kick under symmetry assumption and confirming low-velocity hydrogen mixing in a Type II explosion.