The origin of the spectral intensities of cosmic-ray positrons

Abstract

AMS instrument aboard the International Space Station is a high precision instrument capable of collecting large statistics on cosmic ray intensities and as such has started making highly significant contributions to Astroparticle Physics. In order to fully benefit from these observations, the positron fraction in cosmic rays in their recent publication and other results that will follow, the models to interpret the results have to be equally good. We enlarge on this remark by citing examples from the currently popular model and one of our own fitting the observed spectra of positrons, extending it to higher energies. We also show what one might expect to observe from a mono-energetic source, such as the annihilation of dark matter.

References in corpus (8)

• Observation of an anomalous positron abundance in the cosmic radiation
• Solar Modulation of Cosmic Rays
• The origin of the positron excess in cosmic rays
• Constraints on the Galactic Halo Dark Matter from Fermi-LAT Diffuse Measurements
• Dark matter interpretation of recent electron and positron data
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• Inhomogeneity in the Supernova Remnant Distribution as the Origin of the PAMELA Anomaly
• Three-Dimensional Model of Cosmic-Ray Lepton Propagation Reproduces Data from the Alpha Magnetic Spectrometer on the International Space Station

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