Detection of helium lines in Balmer-dominated shocks of Type Ia SNRs reveals enhanced helium in some remnants and challenges shock models, enabling new constraints on progenitor environments.
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Multi-wavelength MCMC modeling of RCW 38 supports hadronic gamma-ray production with K_ep ≲ 10^{-3} and acceleration efficiency ≳1%, consistent with cosmic-ray composition requirements.
Molecular and atomic gas at velocities near -32 and -55 km/s shows spatial correspondence with the TeV gamma-ray shell around Westerlund 1, supporting hadronic cosmic-ray production with total proton energy approximately 6 x 10^49 erg.
LHAASO gamma-ray data from G150.3+4.5 and γ-Cygni show high-energy components produced by PeV cosmic rays from supernova remnants colliding with molecular clouds.
A self-consistent multi-zone kinetic model reproduces SN 1006's spectrum and morphology, finding ~20% CR acceleration efficiency in quasi-parallel shocks, <1% in quasi-perpendicular shocks, and predominantly leptonic gamma-ray emission.
Derives and validates via PIC simulations a scaling law for nonthermal spectral tails in mildly to strongly magnetized turbulent plasmas, with application to black-hole coronae.
Oblique shocks in massive star clusters accelerate cosmic rays to multi-PeV energies, reproducing the LHAASO-observed knee as a sequence of rigidity-dependent cutoffs from combined supernova and wind shocks.
New infrared spectra show reduced water ice and unusually strong aliphatic hydrocarbon absorption towards W44, attributed to shock and cosmic-ray processing in the associated molecular cloud.
Calibrated AGN disk-wind models contribute ≲5% to the CGB above 10 GeV and ≲10% to the CNB at 100 TeV and are unlikely to dominate either background.
Review of cosmic ray production and radio emission in galaxy clusters with recommendations for SKA observations of magnetic fields and low-energy particles.
The paper reviews how the ZSR equation's chaotic solutions may produce gluon condensation that appears as broken-power-law spectra in cosmic gamma rays, potentially bridging QCD and astrophysics.
citing papers explorer
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Helium emission from Balmer-dominated shocks in Type Ia supernova remnants provides constraints to their progenitor systems
Detection of helium lines in Balmer-dominated shocks of Type Ia SNRs reveals enhanced helium in some remnants and challenges shock models, enabling new constraints on progenitor environments.
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A broadband view of the thermal and non-thermal emission from the embedded massive star cluster RCW 38
Multi-wavelength MCMC modeling of RCW 38 supports hadronic gamma-ray production with K_ep ≲ 10^{-3} and acceleration efficiency ≳1%, consistent with cosmic-ray composition requirements.
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Discovery of Molecular and Atomic Gas associated with HESS J1646-458 (Westerlund 1): Spatial TeV Gamma-Ray and Interstellar Proton Correspondence
Molecular and atomic gas at velocities near -32 and -55 km/s shows spatial correspondence with the TeV gamma-ray shell around Westerlund 1, supporting hadronic cosmic-ray production with total proton energy approximately 6 x 10^49 erg.
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Ultra-high-energy $\gamma$-ray imprints from PeV particles accelerated by supernova remnants
LHAASO gamma-ray data from G150.3+4.5 and γ-Cygni show high-energy components produced by PeV cosmic rays from supernova remnants colliding with molecular clouds.
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SN 1006: A Cosmic Laboratory for Investigating Shock Acceleration Physics
A self-consistent multi-zone kinetic model reproduces SN 1006's spectrum and morphology, finding ~20% CR acceleration efficiency in quasi-parallel shocks, <1% in quasi-perpendicular shocks, and predominantly leptonic gamma-ray emission.
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On The Nonthermal Power Laws In Magnetized Turbulent Plasmas
Derives and validates via PIC simulations a scaling law for nonthermal spectral tails in mildly to strongly magnetized turbulent plasmas, with application to black-hole coronae.
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Oblique Shocks at Supernova Remnants in Massive Star Clusters: A Model for the Cosmic-Ray Knee Observed by LHAASO
Oblique shocks in massive star clusters accelerate cosmic rays to multi-PeV energies, reproducing the LHAASO-observed knee as a sequence of rigidity-dependent cutoffs from combined supernova and wind shocks.
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Dust Absorption towards Supernova Remnant W44
New infrared spectra show reduced water ice and unusually strong aliphatic hydrocarbon absorption towards W44, attributed to shock and cosmic-ray processing in the associated molecular cloud.
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Revisiting Disk Winds in Active Galactic Nuclei as an Origin of Cosmic Gamma-ray and Neutrino Backgrounds
Calibrated AGN disk-wind models contribute ≲5% to the CGB above 10 GeV and ≲10% to the CNB at 100 TeV and are unlikely to dominate either background.
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The Cosmic Ray Life Cycle in Galaxy Clusters
Review of cosmic ray production and radio emission in galaxy clusters with recommendations for SKA observations of magnetic fields and low-energy particles.
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Looking for Condensed Gluons: A Cross-Scale Journey from the Deep Structure of Protons to High-Energy Cosmic Rays -- A Mini-Review
The paper reviews how the ZSR equation's chaotic solutions may produce gluon condensation that appears as broken-power-law spectra in cosmic gamma rays, potentially bridging QCD and astrophysics.