{"paper":{"title":"Probing fundamental constant evolution with redshifted conjugate-satellite OH lines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-ex"],"primary_cat":"astro-ph.CO","authors_text":"2), (2) National Radio Astronomy Observatory, (3) Arecibo Observatory, India, Jayaram N. Chengalur (1), Nissim Kanekar (1, Tapasi Ghosh (3) ((1) National Centre for Radio Astrophysics, USA, USA)","submitted_at":"2010-04-29T20:05:28Z","abstract_excerpt":"We report Westerbork Synthesis Radio Telescope and Arecibo Telescope observations of the redshifted satellite OH-18cm lines at $z \\sim 0.247$ towards PKS1413+135. The \"conjugate\" nature of these lines, with one line in emission and the other in absorption, but with the same shape, implies that the lines arise in the same gas. The satellite OH-18cm line frequencies also have different dependences on the fine structure constant $\\alpha$, the proton-electron mass ratio $\\mu = m_p/m_e$, and the proton gyromagnetic ratio $g_p$.  Comparisons between the satellite line redshifts in conjugate systems "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.5383","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"}