{"paper":{"title":"Measuring temperature and ammonia hydrate ice on Charon in 2015 from Keck/OSIRIS spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Bryan J. Holler, Eliot F. Young, Henry G. Roe, James E. Lyke, Leslie A. Young, Marc W. Buie, William M. Grundy","submitted_at":"2016-06-17T22:33:55Z","abstract_excerpt":"In this work we investigated the longitudinal (zonal) variability of H$_2$O and ammonia (NH$_3$) hydrate ices on the surface of Charon through analysis of the 1.65 $\\mu$m and 2.21 $\\mu$m absorption features, respectively. Near-infrared spectra presented here were obtained between 2015-07-14 and 2015-08-30 UT with the OSIRIS integral field spectrograph on Keck I. Spectra centered on six different sub-observer longitudes were obtained through the Hbb (1.473-1.803 $\\mu$m) and Kbb (1.965-2.381 $\\mu$m) filters. Gaussian functions were fit to the aforementioned bands to obtain information on band ce"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.05695","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"}