1WHSP: an IR-based sample of $\sim$1,000 VHE $\gamma$-ray blazar candidates

B. Arsioli, B. Fraga, P. Giommi +2

Blazars are the dominant type of extragalactic sources at microwave and at $\gamma$-ray energies. In the most energetic part of the electromagnetic spectrum (E>100GeV) a large fraction…