{"paper":{"title":"The 21Na(p,gamma)22Mg Reaction and Oxygen-Neon Novae","license":"","headline":"","cross_cats":["nucl-ex"],"primary_cat":"astro-ph","authors_text":"A. A. Chen, A. Hussein, A. M. Laird, A. Olin, C. Jewett, C. Wrede, D. Gigliotti, D. Hunter, D. Hutcheon, D. Ottewell, F. Strieder, J. G. Rogers, J. Jose, J. King, J. M. D'Auria, L. Buchmann, M. Hernanz, M. Lamey, M. L. Chatterjee, P. D. Parker, R. E. Azuma, R. Lewis, S. Bishop, S. Engel, S. Kubono, S. Michimasa, U. Greife, W. Liu","submitted_at":"2003-03-13T10:34:49Z","abstract_excerpt":"The 21Na(p,gamma)22Mg reaction is expected to play an important role in the nucleosynthesis of 22Na in Oxygen-Neon novae. The decay of 22Na leads to the emission of a characteristic 1.275 MeV gamma-ray line. This report provides the first direct measurement of the rate of this reaction using a radioactive 21Na beam, and discusses its astrophysical implications. The energy of the important state was measured to be E$_{c.m.}$= 205.7 $\\pm$ 0.5 keV with a resonance strength $\\omega\\gamma = 1.03\\pm0.16_{stat}\\pm0.14_{sys}$ meV."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0303285","kind":"arxiv","version":1},"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"}