{"paper":{"title":"Tomography of Galactic star-forming regions and spiral arms with the Square Kilometer Array","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Amy J. Mioduszewski (NRAO Socorro), Andreas Brunthaler (MPIfR Bonn), Gisela N. Ortiz-Leon (CRyA-UNAM), Huib Jan van Langevelde (JIVE/Sterrewacht Leiden), James A. Green (SKA Organisation), Jan Forbrich (University of Vienna), Kazi L.J. Rygl (ESA-ESTEC Noordwijk), Laurent Loinard (CRyA-UNAM), Luis F. Rodriguez (CRyA-UNAM), Mark Thompson (University of Hertfordshire), Melvin Hoare (Leeds University), Rosa M. Torres-Lopez (U. Guadalajara), Sergio A. Dzib (MPIfR Bonn), Simon Ellingsen (University of Tasmania), Tyler L. Bourke (SKA Organisation)","submitted_at":"2014-12-19T18:44:57Z","abstract_excerpt":"Very Long Baseline Interferometry (VLBI) at radio wavelengths can provide astrometry accurate to 10 micro-arcseconds or better (i.e. better than the target GAIA accuracy) without being limited by dust obscuration. This means that unlike GAIA, VLBI can be applied to star-forming regions independently of their internal and line-of-sight extinction. Low-mass young stellar objects (particularly T Tauri stars) are often non-thermal compact radio emitters, ideal for astrometric VLBI radio continuum experiments. Existing observations for nearby regions (e.g. Taurus, Ophiuchus, or Orion) demonstrate t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.6481","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"}