{"paper":{"title":"Sensitivity coefficients to $\\alpha$-variation for astrophysically relevant transitions in Ni II","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"physics.atom-ph","authors_text":"E.A. Konovalova, M.G. Kozlov, R.T. Imanbaeva","submitted_at":"2014-07-07T20:10:36Z","abstract_excerpt":"We calculated the dependence of the transition frequencies on the fine-structure constant $\\alpha$ ($q$-factors) for Ni~II. Nickel is one of the few elements with high sensitivity to $\\alpha$-variation, whose lines are observed at high redshifts. This makes it a sensitive probe for $\\alpha$-variation on the cosmological timescale. The electronic structure of Ni II ion was treated within the configuration interaction (CI) method using Dirac-Coulomb Hamiltonian."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.1860","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"}