{"paper":{"title":"Comparison of Pulsar Positions from Timing and Very Long Baseline Astrometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.GA","astro-ph.IM"],"primary_cat":"astro-ph.HE","authors_text":"C.J. Russell, D.J. Reardon, G. Hobbs, J.B. Wang, J.P. Yuan, L. Toomey, L. Wen, M. Bailes, M.J. Keith, M. Kerr, N.D.R. Bhat, N. Wang, P A. Rosado, P.D. Lasky, R.M. Shannon, R.N. Manchester, R. Spiewak, S. Dai J. Dempsey, S. Os lowski, V. Ravi, W.A. Coles, W. van Straten, X.-J. Zhu, X.-P. You, Y. Levin","submitted_at":"2017-04-01T02:33:44Z","abstract_excerpt":"Pulsar positions can be measured with high precision using both pulsar timing methods and very-long-baseline interferometry (VLBI). Pulsar timing positions are referenced to a solar-system ephemeris, whereas VLBI positions are referenced to distant quasars. Here we compare pulsar positions from published VLBI measurements with those obtained from pulsar timing data from the Nanshan and Parkes radio telescopes in order to relate the two reference frames. We find that the timing positions differ significantly from the VLBI positions (and also differ between different ephemerides). A statisticall"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.01011","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"}