Local interstellar cosmic-ray spectra derived from gamma-ray emissivities

Abstract

Precise gamma-ray emissivities from cosmic-ray interactions with interstellar gas have been recently derived using Fermi-LAT data, and used to constrain the local interstellar spectra of protons and leptons. We report on a continuing effort to exploit these emissivities combined with the latest hadronic gamma-ray production cross-sections and other constraints such as synchrotron emission for the leptonic component. The interstellar spectra provide important information for heliospheric modulation, and cosmic-ray origin and propagation.

arXiv commentContribution to the 34th International Cosmic Ray Conference, July 30 to August 6, The Hague, Netherlands

References in corpus (3)

• Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
• Deriving the cosmic ray spectrum from gamma-ray observations
• On the Physics Connecting Cosmic Rays and Gamma Rays: Towards Determining the Interstellar Cosmic Ray Spectrum

Cited by in corpus (5)

• Imprints of Cosmic Rays in Multifrequency Observations of the Interstellar Emission
• Cosmic ray spectrum in the local Galaxy
• Gamma rays as probes of cosmic-ray propagation and interactions in galaxies
• Gamma-Ray Emission from Molecular Clouds Generated by Penetrating Cosmic Rays
• Non-parametric determination of H and He interstellar fluxes from cosmic-ray data