2006/02/10 by J. Albert, E. Aliu, H. Anderhub +142 · 1 citation
Physics and Astronomy · #Astro and Planetary Science #Astrophysics and Cosmic Phenomena #Gamma-ray bursts and supernovae #astro-ph
paper · pdf · doi:10.1086/503767
published as Astrophys.J.641:L9-L12,2006 · 14 pages, 4 figures, submitted to ApJ
arxiv created 2006/02/10 · openalex publication_date 2006/03/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
The long-duration γ-ray burst GRB 050713a was observed by the MAGIC Telescope 40 s after the burst onset and followed up for 37 minutes, until twilight. The observation, triggered by a Swift alert, covered energies above ≈175 GeV. Using standard MAGIC analysis, no evidence of a γ-ray signal was found. As the redshift of the GRB was not measured directly, the flux upper limit estimated by MAGIC is still compatible with the assumption of an unbroken power-law spectrum extending from a few hundred keV to our energy range.