{"paper":{"title":"Water vapor toward starless cores: the Herschel view","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Baudry, A. Fuente, A.M. di Giorgio, A. Megej, A.O. Benz, B. Jackson, B. Larsson, B. Nisini, B. Parise, C. Codella, C. Dominik, C. McCoey, C. Risacher, D. Johnstone, D. Kester, D. Lis, D. Neufeld, E.A. Bergin, E.F. van Dishoeck, E.Keto, F. Daniel, F.F.S. van der Tak, F. Helmich, F. Herpin, F. Wyrowski, G.A. Blake, G.J. Herczeg, G. Melnick, H. Javadi, J. Braine, J. Cernicharo, J.C. Pearson, J.K. Jorgensen, J.R. Goicoechea, J. Santiago-Garcia, L.E. Kristensen, L. Pagani, M. Benedettini, M. Fich, M. Marseille, M. Olberg, M.R. Hogerheijde, M. Tafalla, P. Bjerkeli, P.Caselli, P. Encrenaz, P. Saraceno, P. Siegel, R. Bachiller, R. Liseau, R. Plume, R. Shipman, R. Visser, S. Bontemps, S. Bruderer, S.D. Doty, S.F. Wampfler, T.A. van Kempen, T. Gaier, T. Giannini, Th. de Graauw, T. Jacq, U.A. Yildiz, W. Laauwen, W. Luinge, Y. Aikawa","submitted_at":"2010-07-07T20:57:41Z","abstract_excerpt":"SWAS and Odin provided stringent upper limits on the gas phase water abundance of dark clouds (x(H2O) < 7x10^-9). We investigate the chemistry of water vapor in starless cores beyond the previous upper limits using the highly improved angular resolution and sensitivity of Herschel and measure the abundance of water vapor during evolutionary stages just preceding star formation. High spectral resolution observations of the fundamental ortho water (o-H2O) transition (557 GHz) were carried out with Herschel HIFI toward two starless cores: B68, a Bok globule, and L1544, a prestellar core embedded "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.1248","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"}