Giommi, PaoloPaoloGiommiYu-Ling ChangBruno Arsioli2020-09-172020-09-172017-11-01https://hdl.handle.net/20.500.13025/4956Blzars are extremely important for GeV-TeV astronomy; however, the number of cataloged blazars are still small relative to other AGNs. Thus, we built a HSP blazar catalog based on multi-frequency selection criteria, listing the most complete HSP blazar catalog (2WHSP) up to date. We cross-match all available radio, IR, and X-ray data, selecting only sources with Synchrotron peak larger than 1015Hz. In total the 2WHSP catalog includes 1695 objects, which are promising candidates for future high energy surveys.Galaxies: active; BL Lacertae objects: general; radiation mechanisms: non-thermal; gamma rays: galaxiesconference paper10.1142/9789813226609_0392http://www.worldscientific.com/doi/abs/10.1142/9789813226609_03925a12bc096c5e1b0811468b7f