{"paper":{"title":"Dust, Ice and Gas in Time (DIGIT) Herschel program first results: A full PACS-SED scan of the gas line emission in protostar DK Cha","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Glassgold, B. Acke, B. Merin, B. Sturm, C. Dominik, C. Knez, C. P. Dullemond, C. Salyk, C. Waelkens, D. Jaffe, E. Bergin, E.F. van Dishoeck, G. A. Blake, G.D. Mulders, G.J. Herczeg, G. Meeus, H. J. Kim, J. Bouwman, J.C. Augereau, J.D. Green, J.-E. Lee, J.-H. Chen, J. H. Lacy, J.K.J. Joergensen, J. M. Brown, J. Najita, J. Olofsson, J. S. Carr, K. M. Pontoppidan, L.B.F.M. Waters, L. Cieza, L.E. Kristensen, L. Mundy, M. Adamkovics, M. G\\\"udel, M. M. Dunham, M. R. Hogerheijde, N.J. Evans, P. M. Harvey, R. Meijerink, R. Visser, S. Maret, T.A. van Kempen, Th. Henning, U.A. Y{\\i}ld{\\i}z","submitted_at":"2010-05-14T15:04:42Z","abstract_excerpt":"DK Cha is an intermediate-mass star in transition from an embedded configuration to a star plus disk stage. We aim to study the composition and energetics of the circumstellar material during this pivotal stage. Using the Range Scan mode of PACS  on the Herschel Space Observatory, we obtained a spectrum of DK Cha from 55 to 210 micron as part of the DIGIT Key Program. Almost 50 molecular and atomic lines were detected, many more than the 7 lines detected in ISO-LWS. Nearly the entire ladder of CO from J=14-13 to 38-37 (E_u/k = 4080 K), water from levels as excited as E_u/k = 843 K, and OH line"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.2548","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":""},"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"}