{"paper":{"title":"X-ray polarization in SN 1006 southwest shows spatial variations and differences with the radio band","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Allyn F. Tennant, C.-Y. Ng, David Moffett, Dmitry Prokhorov, Douglas A. Swartz, Enrico Costa, Estela Reynoso, Jacco Vink, Niccol\\`o Bucciantini, Paolo Soffitta, Patrick Slane, Philip Kaaret, Ping Zhou, Riccardo Ferrazzoli, Stefano Silvestri, Wenlang He, William Cotton, Yi-Jung Yang","submitted_at":"2025-05-14T18:13:02Z","abstract_excerpt":"We report the detection of a spatial variation of X-ray polarization in the southwestern shell of SN 1006 (SN 1006 SW) using IXPE. The shell has an average X-ray polarization degree (PD) of $21.6\\%\\pm 4.5\\%$ and polarization angle (PA) of $-48^\\circ \\pm 5^\\circ$ in the 2--4 keV energy band, similar to those in the northeastern shell. The PD varies along SN 1006 SW, with a peak PD$= 40\\%\\pm 8\\%$ in the south and a significantly lower PD $\\lesssim 27\\%$ (99\\% upper limit) in the west where the shell has been proposed to be interacting with an interstellar cloud. The correlation between the PD, w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.09712","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2505.09712/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}