Observations of the Crab Nebula with H.E.S.S. Phase II

Prokoph, Heike (author): Linnéuniversitetet,Institutionen för fysik och elektroteknik (IFE)

Collaboration, for the H. E. S. S. (author)

(creator_code:org_t)

Related links:: http://arxiv.org/pdf...; show more...; https://urn.kb.se/re...; show less...

Abstract Subject headings

The High Energy Stereoscopic System (H.E.S.S.) phase I instrument was an array of four 100m2 mirror area Imaging Atmospheric Cherenkov Telescopes (IACTs) that has very successfully mapped the sky at photon energies above ∼ 100GeV. Recently, a 600m2 telescope was added to the centre of the existing array, which can be operated either in standalone mode or jointly with the four smaller telescopes. The large telescope lowers the energy threshold for gamma-ray observations to several tens of GeV, making the array sensitive at energies where the Fermi-LAT instrument runs out of statistics. At the same time, the new telescope makes the H.E.S.S. phase II instrument. This is the first hybrid IACT array, as it operates telescopes of different size (and hence different trigger rates) and different field of view. In this contribution we present results of H.E.S.S. phase II observations of the Crab Nebula, compare them to earlier observations, and evaluate the performance of the new instrument with Monte Carlo simulations.

By the author/editor: Holler, M.; Berge, D.; van Eldik, C.; Lenain, J.-P.; Marandon, V.; Murach, T.; show more...; de Naurois, M.; Parsons, R. D.; Prokoph, Heike; Zaborov, D.; Collaboration, f ...; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Astronomy Astrop ...

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