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Under the assumption that jets explode all core collapse supernovae (CCSNe) Iclassify 14 CCSN remnants (CCSNRs) into five groups according to theirmorphology as shaped by jets, and attribute the classes to the specific angularmomentum of the pre-collapse core. Point-symmetry (1 CCSNR): According to thejittering jets explosion mechanism (JJEM) when the pre-collapse core rotatesvery slowly the newly born neutron star (NS) launches tens of jet-pairs in alldirections. The last several jet-pairs might leave an imprint of several pairsof ears, i.e., a point-symmetric morphology. One pair of ears (8 CCSNRs): Morerapidly rotating cores might force the last pair of jets to be long-lived andshape one pair of jet-inflated ears that dominate the morphology. S-shaped (1CCSNR): The accretion disk might precess, leading to an S-shaped morphology.Barrel-shaped (3 CCSNRs): Even more rapidly rotating pre-collapse cores mightresult in a final energetic pair of jets that clear the region along the axisof the pre-collapse core rotation and form a barrel-shaped morphology.Elongated (1 CCSNR): Very rapidly rotating pre-collapse core force all jets tobe along the same axis such that the jets are inefficient in expelling massfrom the equatorial plane and the long-lasting accretion process turns the NSinto a black hole (BH). The two new results of this study are theclassification of CCSNRs into five classes based on jet-shaped morphologicalfeatures, and the attribution of the morphological classes mainly to thepre-collapse core rotation in the frame of the JJEM.

Classifying core collapse supernova remnants by their morphology as shaped by the last exploding jets