Imprints of the jittering jets explosion mechanism in the morphology of the supernova remnant SNR 0540-69.3

Abstract

I identify a point-symmetric structure in recently published VLT/MUSE velocity maps of different elements in a plane along the line of sight at the center of the supernova remnant SNR 0540-69.3, and argue that jittering jets that exploded this core collapse supernova shaped this point-symmetric structure. The four pairs of two opposite clumps that compose this point symmetric structure suggest that two to four pairs of jittering jets shaped the inner ejecta in this plane. In addition, intensity images of several spectral lines reveal a faint strip (the main jet-axis) that is part of this plane of jittering jets and its similarity to morphological features in a few other SNRs and in some planetary nebulae further suggests shaping by jets. My interpretation implies that in addition to instabilities, jets also mix elements in the ejecta of core collapse supernovae. Based on the point-symmetric structure and under the assumption that jittering jets exploded this supernova, I estimate the component of the neutron star natal kick velocity on the plane of the sky to be ~235 km/s, and at an angle of 47 degrees to the direction of the main jet-axis. I analyse this natal kick direction together with other 12 SNRs in the frame of the jittering jets explosion mechanism.

Accepted for publication in Research in Astronomy and Astrophysics

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Cited by in corpus (10)

• The role of jets in exploding supernovae and in shaping their remnants
• Remnant masses of core collapse supernovae in the jittering jets explosion mechanism
• Boosting jittering jets by neutrino heating in core collapse supernovae
• Powering luminous core collapse supernovae with jets
• Identifying jittering-jet-shaped ejecta in the Cygnus Loop supernova remnant
• Simulating the shaping of point-symmetric structures in the jittering jets explosion mechanism
• Feeding post core collapse supernova explosion jets with an inflated main sequence companion
• Implications of post-kick jets in core collapse supernovae
• Post-explosion positive jet-feedback activity in inner ejecta of core collapse supernovae
• Rapid decline in the lightcurves of luminous supernovae by jet-driven bipolar explosions