{"paper":{"title":"Molecular Hydrogen in the Damped Lyman-alpha System towards GRB 120815A at z=2.36","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. De Cia, A. de Ugarte Postigo, A. Rossi, B. Milvang-Jensen, C. Ledoux, D. A. Kann, D. J. Watson, D. Malesani, D. Xu, G. Tagliaferri, J. Greiner, J. Hjorth, J. P. U. Fynbo, K. Wiersema, L. Christensen, L. Kaper, M. Nardini, N. R. Tanvir, O. E. Hartoog, P. Goldoni, P. Jakobsson, P. M. J. Afonso, P. M. Vreeswijk, P. Schady, R. A. M. J. Wijers, R. Filgas, R. S\\'anchez-Ram\\'irez, S. Covino, S. D. Vergani, S. Piranomonte, S. Schmidl, S. Schulze, T. Kr\\\"uhler, V. D'Elia, V. Sudilovsky","submitted_at":"2013-04-25T20:00:02Z","abstract_excerpt":"We present the discovery of molecular hydrogen (H_2), including the presence of vibrationally-excited H_2^* in the optical spectrum of the afterglow of GRB 120815A at z=2.36 obtained with X-shooter at the VLT. Simultaneous photometric broad-band data from GROND and X-ray observations by Swift/XRT place further constraints on the amount and nature of dust along the sightline. The galactic environment of GRB 120815A is characterized by a strong DLA with log(N(H)/cm^-2) = 21.95 +/- 0.10, prominent H_2 absorption in the Lyman-Werner bands (log(N(H_2)/cm^-2) = 20.53 +/- 0.13) and thus a molecular g"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.7003","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"}