Discovery of hard-spectrum<i>γ</i>-ray emission from the BL Lacertae object 1ES 0414+009
Discovery of hard-spectrum<i>γ</i>-ray emission from the BL Lacertae object 1ES 0414+009
1ES 0414+009 (z = 0.287) is a distant high-frequency-peaked BL Lac object, and has long been considered a likely emitter of very-high energy (VHE, E>100 GeV) gamma-rays due to its high X-ray and radio flux. Observations in the VHE gamma-ray band and across the electromagnetic spectrum can provide insights into …