First Detection of the Crab Pulsar above 100 GeV

First Detection of the Crab Pulsar above 100 GeV

We present the detection of pulsed gamma-ray emission from the Crab pulsar above 100 GeV with the VERITAS array of atmospheric Cherenkov telescopes. Gamma-ray emission at theses energies was not expected in pulsar models. The detection of pulsed emission above 100 GeV and the absence of an exponenti...

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Veröffentlicht in:arXiv.org 2012-08
Hauptverfasser: Otte, A Nepomuk, the VERITAS Collaboration
Format: Artikel
Sprache:eng
Schlagworte:
Atmospheric models
Curvature
Emission
Gamma rays
Physics - High Energy Astrophysical Phenomena
Pulsars
Telescopes
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Zusammenfassung:We present the detection of pulsed gamma-ray emission from the Crab pulsar above 100 GeV with the VERITAS array of atmospheric Cherenkov telescopes. Gamma-ray emission at theses energies was not expected in pulsar models. The detection of pulsed emission above 100 GeV and the absence of an exponential cutoff makes it unlikely that curvature radiation is the primary production mechanism of gamma rays at these energies.
ISSN:2331-8422
DOI:10.48550/arxiv.1208.2035