The Crab Pulsar and Nebula as seen in gamma-rays
Elena Amato, Barbara Olmi
TL;DR
This paper reviews over 30 years of gamma-ray observations of the Crab Pulsar and Nebula, highlighting discoveries like fast variability, pulsed emission at high energies, and photons exceeding 1 PeV, shaping our understanding of this cosmic accelerator.
Contribution
It provides a comprehensive overview of gamma-ray observational advances and their implications for theories of the Crab Pulsar and Nebula.
Findings
Detection of fast variability in gamma-ray emission
Observation of pulsed emission up to very high energies
Detection of photons exceeding 1 PeV
Abstract
Slightly more than 30 years ago, Whipple detection of the Crab Nebula was the start of Very High Energy gamma-ray astronomy. Since then, gamma-ray observations of this source have continued to provide new surprises and challenges to theories, with the detection of fast variability, pulsed emission up to unexpectedly high energy, and the very recent detection of photons with energy exceeding 1 PeV. In this article we review the impact of gamma-ray observations on our understanding of this extraordinary accelerator.
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