{"paper":{"title":"The birth rate of supernovae from double-degenerate and core-degenerate systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Wuming Yang, Xiangcun Meng","submitted_at":"2012-05-11T08:18:34Z","abstract_excerpt":"We make a series of Monte Carlo simulations by a rapid binary evolution code and take two treatments of CE evolution, i.e. $\\alpha$-formalism and $\\gamma$-algorithm. We find that only for the $\\alpha$-formalism with a high CE ejection efficiency, the shape of DTD from DD systems may be consistent with that derived observationally, i.e. a power low of $\\sim t^{\\rm -1}$, while the value of the birth rate of SNe Ia marginally matches with observations. For the $\\alpha$-formalism with a low CE ejection efficiency and the $\\gamma$-algorithm, neither the shape of DTD nor the value of the birth rate "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.2452","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}