First Detection of the Crab Pulsar above 100 GeV
A. Nepomuk Otte (for the VERITAS Collaboration)
TL;DR
This paper reports the first detection of pulsed gamma-ray emission from the Crab pulsar above 100 GeV, challenging existing models of pulsar gamma-ray production.
Contribution
It provides the first observational evidence of pulsed gamma rays above 100 GeV from the Crab pulsar, suggesting new emission mechanisms.
Findings
Detection of pulsed emission above 100 GeV
Absence of exponential cutoff in gamma-ray spectrum
Challenges curvature radiation models
Abstract
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.
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