The Guitar nebula's pulsar appears to accelerate electrons to within ~3/4 of the theoretical maximum potential, and its brightness is best explained by the pulsar crossing an old supernova remnant's compressed, magnetized shell.
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4 Pith papers cite this work, alongside 106 external citations. Polarity classification is still indexing.
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Multiphase ISM simulations show PeV cosmic-ray diffusion coefficients reach 10^30 cm^2 s^-1, with perpendicular transport boosted at thermal phase boundaries while overall transport is controlled by trans-Alfvenic warm and unstable gas.
End-to-end CTAO simulations show that 50h observations will detect Geminga and Monogem TeV halos at 13–30σ and constrain injection index to Δγ₁≈0.2, magnetic field to ΔB≈2μG, and SDZ size for Monogem.
Diffuse gamma-ray emission detected toward Berkeley 87 with 0.36° extension and photon index 2.68, favoring a hadronic origin due to dense gas and stellar winds.
citing papers explorer
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Guitar Nebula: extreme accelerator in extreme environment
The Guitar nebula's pulsar appears to accelerate electrons to within ~3/4 of the theoretical maximum potential, and its brightness is best explained by the pulsar crossing an old supernova remnant's compressed, magnetized shell.
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Diffusion of PeV Cosmic Rays in the Turbulent and Multiphase Interstellar Medium
Multiphase ISM simulations show PeV cosmic-ray diffusion coefficients reach 10^30 cm^2 s^-1, with perpendicular transport boosted at thermal phase boundaries while overall transport is controlled by trans-Alfvenic warm and unstable gas.
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Geminga and Monogem in the CTAO Era: Probing TeV Halos and Cosmic-Ray Transport
End-to-end CTAO simulations show that 50h observations will detect Geminga and Monogem TeV halos at 13–30σ and constrain injection index to Δγ₁≈0.2, magnetic field to ΔB≈2μG, and SDZ size for Monogem.
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Diffuse gamma-ray emission in the vicinity of open cluster Berkeley 87
Diffuse gamma-ray emission detected toward Berkeley 87 with 0.36° extension and photon index 2.68, favoring a hadronic origin due to dense gas and stellar winds.