Analysis of the possibility of describing the phase and amplitude of cosmic ray proton anisotropy and electron spectra in the 1-TeV range within one set of nearby sources

Свешникова, Л.; Птускин, В. С.; Strelnikova, Olga

doi:10.3103/s1062873811030427

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Contribution From a 'Few' Nearby Sources1

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2012

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“…The probability of S2/S1 being above 20% -a value where a broadening of the 'single source peak' might be expected to be just significant -is only ∼8%. In an independent approach an analysis has been made of the 24 nearest likely sources identified by Sveshnikova et al (2011). Of the SNR, only 3 are old enough for the CR to have any chance of arriving at Earth by now; in our model the rest are so young that the CR will still be trapped inside the remnant.…”

Section: Contribution From a 'Few' Nearby Sourcesmentioning

confidence: 99%

Fine structure in the cosmic ray spectrum: Further analysis and the next step

Erlykin

Wolfendale

2012

Astroparticle Physics

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An analysis is made of the fine structure in the cosmic ray energy spectrum: new facets of present observations and their interpretation and the next step. It is argued that less than about 10% of the intensity of the helium 'peak' at the knee at ≃ 5P eV is due to just a few sources (SNR) other than the single source. The apparent concavity in the rigidity spectra of protons and helium nuclei which have maximum curvature at about 200 GV is confirmed by a joint analysis of the PAMELA, CREAM and ATIC experiments. The spectra of heavier nuclei also show remarkable structure in the form of 'ankles' at several hundred GeV/nucleon. Possible mechanisms are discussed. The search for 'pulsar peaks' has not yet proved successful.

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Section: Contribution From a 'Few' Nearby Sourcesmentioning

confidence: 99%