{"paper":{"title":"Searching for Cool Dust in the Mid-to-Far Infrared: the Mass Loss Histories of The Hypergiants $\\mu$ Cep, VY CMa, IRC+10420, and $\\rho$ Cas","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Andrew J. Skemer, Dinesh Shenoy, L. Andrew Helton, Massimo Marengo, Philip M. Hinz, Roberta M. Humphreys, Robert D. Gehrz, Terry Jay Jones, William F. Hoffmann","submitted_at":"2015-12-04T20:13:42Z","abstract_excerpt":"We present mid- and far- IR imaging of four famous hypergiant stars: the red supergiants $\\mu$ Cep and VY CMa, and the warm hypergiants IRC +10420 and $\\rho$ Cas. Our 11 to 37 $\\mu$m SOFIA/FORCAST imaging probes cool dust not detected in visual and near-IR imaging studies. Adaptive optics (AO) 8 - 12 $\\mu$m imaging of $\\mu$ Cep and IRC +10420 with MMT/MIRAC reveals extended envelopes that are the likely sources of these stars' strong silicate emission features. We find $\\mu$ Cep's mass-loss rate to have declined by about a factor of 5 over a 13,000 history, ranging from 5 $\\times$ 10$^{-6}$ do"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.01529","kind":"arxiv","version":2},"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"}