{"paper":{"title":"GAIA Cepheid parallaxes and 'Local Hole' relieve $H_0$ tension","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Department of Physics, Durham University, Lucy Hogarth, Nigel Metcalfe (CEA, Tom Shanks, UK)","submitted_at":"2018-10-05T10:14:27Z","abstract_excerpt":"There is an $\\approx9\\pm2.5$\\% tension between the value of Hubble's Constant, $H_0=67.4\\pm0.5$km\\,s$^{-1}$Mpc$^{-1}$, implied by the {\\it Planck} microwave background power spectrum and that given by the distance scale of $H_0=73.4\\pm1.7$km\\,s$^{-1}$Mpc$^{-1}$. But with a plausible assumption about a {\\it Gaia} DR2 parallax systematic offset, we find that {\\it Gaia} parallax distances of Milky Way Cepheid calibrators are $\\approx12-15$\\% longer than previously estimated. Similarly, {\\it Gaia} also implies $\\approx4.7\\pm1.7$\\% longer distances for 46 Cepheids than previous distances on the sca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.02595","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"}