Detection of sub-100 GeV gamma-ray pulsations from PSR B1706-44 with H.E.S.S - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2019

Detection of sub-100 GeV gamma-ray pulsations from PSR B1706-44 with H.E.S.S

L. Mohrmann
G. Giavitto
B. Khelifi
B. Rudak
C. Venter
R. Zanin

Résumé

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.

Dates et versions

hal-02302879 , version 1 (01-10-2019)

Identifiants

Citer

M. Spir-Jacob, A. Djannati-Ataï, L. Mohrmann, G. Giavitto, B. Khelifi, et al.. Detection of sub-100 GeV gamma-ray pulsations from PSR B1706-44 with H.E.S.S. 36th International Cosmic Ray Conference, Jul 2019, Madison, United States. ⟨hal-02302879⟩
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