Probing the very-high-energy gamma-ray spectral curvature in the blazar PG 1553+113 with the MAGIC telescopes

MAGIC Collaboration, J. Aleksić, S. Ansoldi +152

PG 1553+113 is a very-high-energy (VHE, $E>100\mathrm{GeV}$) $\gamma$-ray emitter classified as a BL Lac object. Its redshift is constrained by intergalactic absorption lines in the r…