{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"310b66bfd8f56460f7e7f69dc3da93be8f43b80811fc67ffaa98f844fb1eff41","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["03163298ad2b344d180d1db923c0dc1f97f1ccd48c26b702d7d2b2ad69d14301","ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b"],"salt":"f675320eaa46ff83d9384c6bad1a49014d83c0b4dadee6830cc952bb47d27e7d","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"astro.core-collapse-supernovae.neutron-star-kicks","kind":"well-posed","literature_status":"partially-resolved","n":"2","parents":[],"plain":"Neutron stars are born moving hundreds of times faster than a rifle bullet and spinning, possibly because the explosion is lopsided.","posed_since":"","precise":"Determine whether asymmetric mass ejection (gravitational tug of slow ejecta) and anisotropic neutrino emission in 3D explosions reproduce the pulsar velocity distribution (mean $\\sim 4 \\times 10^{7}\\ \\mathrm{cm/s}$, tail above $10^{8}$ cm/s), birth spin periods (tens to hundreds of ms) and any spin-kick alignment. Answer: predicted distributions from simulation suites compared with pulsar proper motions.","problem_ref":"03163298ad2b344d180d1db923c0dc1f97f1ccd48c26b702d7d2b2ad69d14301","references":"","settled_by":"Simulated kick and spin distributions statistically matching pulsar data, and remnant ejecta asymmetries (for example Ti-44 maps) correlated with kick direction.","status_note":"","title":"Origin of neutron star birth kicks and spins","topic_ref":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"b9f45815143a983952960dacea09671da5f9bf06f0a5308606899478f5ac3501","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"cdbb8c463f10edc574e7c32e44b3cc82d13d22407410cece36dbcc80bd9328fc","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"GG9E28rxkJQfeDizwPLhNRdBdF4_TGDJFQwZB7pCxe7BWV5wiFbWHy0ks6B_2f9rB5qGh7ARSXGd1X1pWp5CAg"},"schema":"pubphys.envelope/1"},"record_hash":"b9f45815143a983952960dacea09671da5f9bf06f0a5308606899478f5ac3501","leaf_index":2322}