{"paper":{"title":"Three-dimensional distribution of ejecta in Supernova 1987A at 10 000 days","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"A. Jerkstrand, B. Leibundgut, C. Fransson, F. Taddia, G. Sonneborn, J. C. Wheeler, J. Larsson, J. Sollerman, J. Spyromilio, K. France, K. Heng, K. Migotto, M. Matsuura, N. Smith, P. Challis, P. Garnavich, P. Lundqvist, R. A. Chevalier, R. McCray, R. P. Kirshner, S. Lawrence, S. Mattila","submitted_at":"2016-09-14T20:00:17Z","abstract_excerpt":"Due to its proximity, SN 1987A offers a unique opportunity to directly observe the geometry of a stellar explosion as it unfolds. Here we present spectral and imaging observations of SN 1987A obtained ~10,000 days after the explosion with HST/STIS and VLT/SINFONI at optical and near-infrared wavelengths. These observations allow us to produce the most detailed 3D map of H-alpha to date, the first 3D maps for [Ca II] \\lambda \\lambda 7292, 7324, [O I] \\lambda \\lambda 6300, 6364 and Mg II \\lambda \\lambda 9218, 9244, as well as new maps for [Si I]+[Fe II] 1.644 \\mu m and He I 2.058 \\mu m. A compar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.04413","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"}