{"paper":{"title":"A study of the distant activity of comet C/2006 W3 (Christensen) using Herschel and ground-based radio telescopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A.S. Medvedev, B.M. Swinyard, B. Vandenbussche, C. Jarchow, C. Waelkens, D. Bockel\\'ee-Morvan, D.C. Lis, D. Hutsem\\'ekers, D. Naylor, E. Bergin, E. Jehin, E. Lellouch, F. Bensch, G.A. Blake, J.A.D.L. Blommaert, J. Cernicharo, J. Crovisier, J. Manfroid, L. Decin, L.M. Lara, M. Banaszkiewicz, M. de Val-Borro, M. Emprechtinger, M.I. Blecka, M. Kidger, M.K. K\\\"uppers, M. Rengel, N. Biver, N.Thomas, P. Encrenaz, P. Hartogh, R. Moreno, R. Schieder, S. Leeks, S. Szutowicz, T. de Graauw, T. Encrenaz, T. Fulton","submitted_at":"2010-05-10T15:34:28Z","abstract_excerpt":"Comet C/2006 W3 (Christensen) was observed in November 2009 at 3.3 AU from the Sun with Herschel. The PACS instrument acquired images of the dust coma in 70- and 160-micrometers filters, and spectra covering several H2O rotational lines.  Spectra in the range 450-1550 GHz were acquired with SPIRE. The comet emission continuum from 70 to 672 micrometers was measured, but no lines were detected.  The spectral energy distribution indicates thermal emission from large particles and provides a measure of the size distribution index and dust production rate.  The upper limit to the water production "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.1592","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/1005.1592/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"}