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Predictions of Gamma-ray Emission from Globular Cluster Millisecond Pulsars Above 100 MeV

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arxiv 0903.3031 v1 pith:2WNEAG6I submitted 2009-03-17 astro-ph.HE

Predictions of Gamma-ray Emission from Globular Cluster Millisecond Pulsars Above 100 MeV

classification astro-ph.HE
keywords mspsclusteremissionfermifluxgamma-rayglobularmillisecond
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The recent Fermi detection of the globular cluster (GC) 47 Tucanae highlighted the importance of modeling collective gamma-ray emission of millisecond pulsars (MSPs) in GCs. Steady flux from such populations is also expected in the very high energy (VHE) domain covered by ground-based Cherenkov telescopes. We present pulsed curvature radiation (CR) as well as unpulsed inverse Compton (IC) calculations for an ensemble of MSPs in the GCs 47 Tucanae and Terzan 5. We demonstrate that the CR from these GCs should be easily detectable for Fermi, while constraints on the total number of MSPs and the nebular B-field may be derived using the IC flux components.

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  1. GeV-TeV Connections in Galaxies: Evolutionary Signatures from Pulsars in Globular Clusters

    astro-ph.HE 2025-08 unverdicted novelty 5.0

    Globular cluster pulsar winds may make a significant contribution to GeV and TeV gamma-ray emission from massive quiescent galaxies, with strength tied to each galaxy's evolutionary history.