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Schwarz, S.D. Barthelmy, S. Klose, S. McBreen, S.R. Oates, S. Savaglio, S. Schulze, T. Kruehler, T.-S. Pyo, T. Totani, X.F. Wu, Z. Haiman","submitted_at":"2008-10-13T20:59:00Z","abstract_excerpt":"We report on the detection by Swift of GRB 080913, and subsequent optical/near-infrared follow-up observations by GROND which led to the discovery of its optical/NIR afterglow and the recognition of its high-z nature via the detection of a spectral break between the i' and z' bands. 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