In this work, the first stereoscopic observations of the blazar Markarian 421 with the MAGIC telescopes during high source activity from January 2010 were analysed and studied with regard to flux and spectral variations. This is the first time that the spectral evolution in a broad energy range of the VHE γ-ray radiation could be resolved on timescales of 1 day. The observed radiation flares showed correlations with high emission activity in the X-ray regime. In a synchrotron self-Compton model, these spectral variations could be explained by variations of the electron number density.
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In this work, the first stereoscopic observations of the blazar Markarian 421 with the MAGIC telescopes during high source activity from January 2010 were analysed and studied with regard to flux and spectral variations. This is the first time that the spectral evolution in a broad energy range of the VHE γ-ray radiation could be resolved on timescales of 1 day. The observed radiation flares showed correlations with high emission activity in the X-ray regime. In a synchrotron self-Compton model,...
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