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キーワード:
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要旨:
The high energy peaked BL Lac (HBL) object 1ES 0414+009 (z=0.287) is a distant very highenergy
(VHE, E > 100 GeV) blazars with well-determined redshift. This source was detected
with the High Energy Stereoscopic System (H.E.S.S.) between October 2005 and September
2009. It was also detected with the Fermi Large Area Telescope (LAT) in 21 months of data.
The combined high energy (HE) and VHE spectra, once corrected for g-g absorption on the extragalactic
background light (EBL), indicate a Compton peak located above few TeV, among the
highest in the BL Lac class.