Fermi-LAT Detection of Gamma-ray Pulsars above 10 GeV
Pablo M. Saz Parkinson (for the LAT Collaboration)
TL;DR
This paper analyzes gamma-ray pulsars detected by Fermi-LAT above 10 GeV, highlighting their spectral characteristics and discussing the potential for ground-based detection at very high energies.
Contribution
It provides the first comprehensive study of high-energy gamma-ray emission from pulsars above 10 GeV and explores prospects for VHE pulsation detection.
Findings
Some pulsars exhibit significant pulsed emission above 10 GeV.
Most pulsars have spectra with exponential cut-offs around a few GeV.
Ground-based instruments could detect pulsations at energies >100 GeV.
Abstract
The Large Area Telescope (LAT) on board the Fermi satellite has detected ~120 pulsars above 100 MeV. While most gamma-ray pulsars have spectra that are well modeled by a power law with an exponential cut-off at around a few GeV, some show significant pulsed high-energy (HE, >10 GeV) emission. I present a study of HE emission from LAT gamma-ray pulsars and discuss prospects for the detection of pulsations at very high energies (VHE, >100 GeV) with ground-based instruments.
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