{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"3d0918f17c4bb196a14f91d0d60d539b11948bb98c191e76313e77f85af72a65","created":"2026-10-03T07:17:50Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"8d027c6140e4ccc4d369f6df0d95a240df23f9bb0271d6e5f3f6d2e6ebd993a6","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"astro.r-process-sites","field":"astro","n":"1","review_cite":"J. J. Cowan, C. Sneden, J. E. Lawler, A. Aprahamian, M. Wiescher, K. Langanke, G. Martinez-Pinedo, F.-K. Thielemann, Origin of the heaviest elements: The rapid neutron-capture process, Reviews of Modern Physics, 2021","review_link":"https://doi.org/10.1103/RevModPhys.93.015002","review_verified":"true","summary":"About half of the atoms of elements heavier than iron, and nearly all of the gold and uranium, form when nuclei absorb neutrons faster than they can decay, the r-process. Neutron-star mergers are one confirmed site, but whether they make most of it is debated.","title":"Sites of rapid neutron-capture nucleosynthesis","topic_ref":null,"why":"It decides where the heaviest elements come from and connects nuclear physics to stellar explosions."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"629fb53d8771f28ff08120cbd19ad49c2c6fdc9fd60798b0f0a9704b24fc3033","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"07b46960c01b1417f78483c60f01c9eeb642bcc7b8bbc2dd58cc1da76c5d8d70","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"1ioGAcxwA8CQXzE0bPGJ14jg8pcev_78l970V3x-cdbF0v_-_vT2CkIGJr5pdijqGM0nqVutpTE77EJ5nj5QAg"},"schema":"pubphys.envelope/1"},"record_hash":"629fb53d8771f28ff08120cbd19ad49c2c6fdc9fd60798b0f0a9704b24fc3033","leaf_index":49}