CR-MHD simulations of a Milky Way analogue reproduce observed gamma-ray luminosities and spectra without tuning, with sky morphology set by local gas density fluctuations and angular power spectra tracing gas column rather than cosmic-ray density.
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The authors produce a 3D tomographic reconstruction of Galactic cosmic-ray proton density from Fermi-LAT gamma-ray data and a gas model, finding a smooth distribution with moderate inner-Galaxy enhancement consistent with AMS-02 local measurements.
A self-consistent model of cosmic ray transport in molecular clouds with ballistic, diffusive, and hybrid scenarios applied to Taurus shows enhanced scattering on clump scales, suppressed diffusion coefficients, and elevated ionization rates.
Monte Carlo population synthesis of young massive star clusters matches the combined H.E.S.S. Galactic Plane Survey and LHAASO first catalog for five parameter combinations, strongly disfavoring Bohm diffusion.
Most cataloged Fermi point sources in the Vela region are spurious; the GeV emission is extended hadronic emission from the supernova remnant.
citing papers explorer
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The diffuse gamma-ray sky of a Milky Way analogue: Local diversity and global constraints
CR-MHD simulations of a Milky Way analogue reproduce observed gamma-ray luminosities and spectra without tuning, with sky morphology set by local gas density fluctuations and angular power spectra tracing gas column rather than cosmic-ray density.
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A Three-Dimensional Tomographic Reconstruction of the Galactic Cosmic-Ray Proton Density
The authors produce a 3D tomographic reconstruction of Galactic cosmic-ray proton density from Fermi-LAT gamma-ray data and a gas model, finding a smooth distribution with moderate inner-Galaxy enhancement consistent with AMS-02 local measurements.
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Multiwavelength Probes of Cosmic Ray Transport in Molecular Cloud Structures
A self-consistent model of cosmic ray transport in molecular clouds with ballistic, diffusive, and hybrid scenarios applied to Taurus shows enhanced scattering on clump scales, suppressed diffusion coefficients, and elevated ionization rates.
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Young Massive Star Clusters as TeV Emitters: Constraints from H.E.S.S. and LHAASO
Monte Carlo population synthesis of young massive star clusters matches the combined H.E.S.S. Galactic Plane Survey and LHAASO first catalog for five parameter combinations, strongly disfavoring Bohm diffusion.
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GeV emission in the region of Vela: a new view of the supernova remnant
Most cataloged Fermi point sources in the Vela region are spurious; the GeV emission is extended hadronic emission from the supernova remnant.