Computes neutrino template maps from the Galactic Plane including star cluster emission, finding the cluster contribution may be non-negligible and consistent with IceCube best-fit templates.
Gamma-ray sky points to radial gradients in cosmic-ray transport
4 Pith papers cite this work. Polarity classification is still indexing.
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abstract
The standard approach to cosmic-ray (CR) propagation in the Galaxy is based on the assumption that local transport properties can be extrapolated to the whole CR confining volume. Such models tend to underestimate the gamma-ray flux above few GeV measured by the Fermi Large Area Telescope towards the inner Galactic plane. We consider here for the first time a phenomenological scenario allowing for both the rigidity scaling of the diffusion coefficient and convective effects to be position-dependent. We show that within this approach we can reproduce the observed gamma-ray spectra at both low and mid Galactic latitudes - including the Galactic center - without spoiling any local CR observable.
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Simulations demonstrate non-monotonic guide-field regulation of reconnection efficiency via balance between drift-kink suppression and tearing-mode hindrance in 3D relativistic current sheets.
CTAO could set competitive limits on dark matter annihilation cross sections from dwarf irregular galaxies, reaching around 2×10^{-24} cm³/s for 100 GeV WIMPs in the tau channel and exceeding dwarf spheroidal expectations for velocity-dependent cases due to subhalos.
Alternative ISRF models produce only modest changes to the LHAASO diffuse gamma-ray fit; the associated pp neutrinos remain consistent with IceCube all-sky data and compatible with ANTARES/KM3NeT limits.
citing papers explorer
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Modelling Galactic neutrino emission: contributions from massive star clusters and interstellar cosmic rays
Computes neutrino template maps from the Galactic Plane including star cluster emission, finding the cluster contribution may be non-negligible and consistent with IceCube best-fit templates.
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Guide-Field-mediated Multiscale Instabilities in Relativistic Reconnection
Simulations demonstrate non-monotonic guide-field regulation of reconnection efficiency via balance between drift-kink suppression and tearing-mode hindrance in 3D relativistic current sheets.
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Sensitivity of the Cherenkov Telescope Array Observatory to Gamma-Ray Signals in Dwarf Irregular Galaxies
CTAO could set competitive limits on dark matter annihilation cross sections from dwarf irregular galaxies, reaching around 2×10^{-24} cm³/s for 100 GeV WIMPs in the tau channel and exceeding dwarf spheroidal expectations for velocity-dependent cases due to subhalos.
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TeV-PeV Gamma-ray and Neutrino Emission in the Galactic Plane
Alternative ISRF models produce only modest changes to the LHAASO diffuse gamma-ray fit; the associated pp neutrinos remain consistent with IceCube all-sky data and compatible with ANTARES/KM3NeT limits.