Detection of sub-100 GeV$\gamma$-ray pulsations fromPSR B1706−44 with H.E.S.S.
July 22, 2019
We report on the detection of pulsations from PSR B1706-44 based on 28.3 hours of observations with the H.E.S.S. II array with CT5 in monoscopic mode. The lightcurve is similar to that obtained with the Fermi-LAT above 15 GeV and the pulsations exhibit a steep spectrum with index ~-3.8 in the sub 20 GeV to sub 100 GeV energy range. While a significant signal of ~1000 events is detected at energies ~70 GeV, it is not possible to either confirm or rule out a power-law behaviour of PSR B1706-44 spectrum in this range.
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