The high-energy $\gamma$-ray emission of AP Librae

H. E. S. S. Collaboration, Fermi-LAT collaborations

The $\gamma$-ray spectrum of the low-frequency-peaked BL Lac (LBL) object AP Librae is studied, following the discovery of very-high-energy (VHE; $E>100\mathrm{GeV}$) $\gamma$-ray emission up…