{"paper":{"title":"Arcsecond-Resolution Submillimeter HCN Imaging of the Binary Protostar IRAS 16293-2422","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"ASIAA), D. Wilner (SAO), J. Jorgensen (CfA), NAOJ), N. Hirano (ASIAA), N. Ohashi (ASIAA), NTNU), P. T. P. Ho (CfA, S. C. C. Yeh (ASIAA), S. Takakuwa (CfA, T. Bourke (CfA), Y.-J. Kuan (ASIAA","submitted_at":"2007-02-20T14:52:52Z","abstract_excerpt":"(Abridged) With the SMA we have made high angular-resolution (~1\" = 160 AU) observations of the protobinary system IRAS 16293-2422 in the J = 4-3 lines of HCN and HC^15N, and in the continuum at 354.5 GHz. The HCN (4-3) line was also observed using the JCMT to supply missing short spacing information. Submillimeter continuum emission is detected from the individual binary components with a separation of ~5\". The HC^15N (4-3) emission has revealed a compact (~500 AU) flattened structure (P.A. = -16 degree) associated with Source A, and shows a velocity gradient along the projected minor axis, w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0702526","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"}