{"paper":{"title":"Polarization from Aligned Dust Grains in the $\\beta$ Pic Debris Disk","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Meredith Hughes, Charles L. H. Hull, Haifeng Yang, Julien Milli, Mark C. Wyatt, Paulo C. Cort\\'es, Quentin Kral, Richard Teague, Valentin J. M. Le Gouellec, William R. F. Dent, Zhi-Yun Li","submitted_at":"2022-03-22T18:18:00Z","abstract_excerpt":"We present 870 $\\mu$m ALMA polarization observations of thermal dust emission from the iconic, edge-on debris disk $\\beta$ Pic. While the spatially resolved map does not exhibit detectable polarized dust emission, we detect polarization at the $\\sim$3$\\sigma$ level when averaging the emission across the entire disk. The corresponding polarization fraction is $P_\\textrm{frac}$ = $0.51 \\pm 0.19$%. The polarization position angle $\\chi$ is aligned with the minor axis of the disk, as expected from models of dust grains aligned via radiative alignment torques (RAT) with respect to a toroidal magnet"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.11979","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/2203.11979/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"}