Main Image
Volume 358 - 36th International Cosmic Ray Conference (ICRC2019) - GRI - Gamma Ray Indirect
H.E.S.S. Observations of Pulsars at Very High Energies
M. Spir-Jacob,* A. Djannati-Ataï, L. Mohrmann, G. Giavitto, B. Khelifi, B. Rudak, C. Venter, R. Zanin
*corresponding author
Full text: pdf
Pre-published on: 2019 July 22
Published on:
Abstract
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.
Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.