{"paper":{"title":"Confirmation of the ${\\rm \\it Gaia}$ DR2 parallax zero-point offset using asteroseismology and spectroscopy in the ${\\rm \\it Kepler}$ field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Daniel Huber, Dennis Stello, Joel C. Zinn, Marc H. Pinsonneault","submitted_at":"2018-05-07T17:59:32Z","abstract_excerpt":"We present an independent confirmation of the zero-point offset of ${\\rm \\it Gaia}$ Data Release 2 (DR2) parallaxes using asteroseismic data of evolved stars in the ${\\rm \\it Kepler}$ field. Using well-characterized red giant branch (RGB) stars from the APOKASC-2 catalogue we identify a ${\\rm \\it Gaia}$ astrometric pseudo-color ($\\nu_{\\rm eff}$)- and ${\\rm \\it Gaia}$ $G$-band magnitude-dependent zero-point offset of $\\varpi_{\\rm seis} - \\varpi_{Gaia} = 52.8 \\pm 2.4 {\\rm\\ (rand.)} \\pm 8.6 {\\rm\\ (syst.)} - (150.7 \\pm 22.7)(\\nu_{\\rm eff} - 1.5) - (4.21 \\pm 0.77)(G - 12.2) \\mu{\\rm as}$, in the sen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.02650","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"}