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

Spir-Jacob M, Djannati-Ataï A, Mohrmann L, Giavitto G, Khelifi B, Rudak B, Venter C, Zanin R (2019)

Publication Type: Conference contribution

Publication year: 2019

Journal

PoS - Proceedings of Science SISSA

Publisher: Sissa Medialab Srl

Book Volume: 358

Conference Proceedings Title: Proceedings of Science

Event location: Madison, WI US

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.

Authors with CRIS profile

Lars Mohrmann Lehrstuhl für Physik

Involved external institutions

Paris Observatory / Observatoire de Paris FR France (FR) Deutsches Elektronen-Synchrotron DESY DE Germany (DE) Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences PL Poland (PL) Noordwes-Universiteit / North-West University ZA South Africa (ZA) Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics DE Germany (DE)

How to cite

APA:

Spir-Jacob, M., Djannati-Ataï, A., Mohrmann, L., Giavitto, G., Khelifi, B., Rudak, B.,... Zanin, R. (2019). Detection of sub-100 GeV γ-ray pulsations from PSR B1706-44 with H.E.S.S. In Proceedings of Science. Madison, WI, US: Sissa Medialab Srl.

MLA:

Spir-Jacob, M., et al. "Detection of sub-100 GeV γ-ray pulsations from PSR B1706-44 with H.E.S.S." Proceedings of the 36th International Cosmic Ray Conference, ICRC 2019, Madison, WI Sissa Medialab Srl, 2019.

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