Interpretation of AMS-02 electrons and positrons data

  title={Interpretation of AMS-02 electrons and positrons data},
  author={Mattia di Mauro and Fiorenza Donato and Nicolao Fornengo and Roberto A Lineros and Andrea Vittino},
  journal={arXiv: High Energy Astrophysical Phenomena},
We perform a combined analysis of the recent AMS-02 data on electrons, positrons, electrons plus positrons and positron fraction, in a self-consistent framework where we realize a theoretical modeling of all the astrophysical components that can contribute to the observed fluxes in the whole energy range. The primary electron contribution is modeled through the sum of an average flux from distant sources and the fluxes from the local supernova remnants in the Green catalog. The secondary… 
Interpretation of AMS-02 positrons data with secondary production and pulsars
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The latest AMS-02 data on cosmic ray electrons show a break in the energy spectrum around 40 GeV, with a change in the slope of about 0.1. We perform a combined fit to the newest AMS-02 positron and
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The cosmic-ray flux of positrons is measured with high precision by the space-borne particle spectrometer AMS-02. The hypothesis that pulsar wind nebulae (PWNe) can significantly contribute to the
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The cosmic electrons and positrons have been measured with unprecedented statistics up to several hundreds GeV, thus permitting to explore the role that close single sources can have in shaping the
Emission of cosmic rays from Pulsar wind nebulae
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    Journal of Physics: Conference Series
  • 2021
The goal of the paper is to interpret AMS-02 positron data. Most of the positrons come from secondary production which can fit well the data below 10 GeV. However, above 10 GeV the positron flux
Features in the spectrum of cosmic-ray positrons from pulsars
Pulsars have been invoked to explain the origin of recently observed high-energy Galactic cosmic-ray positrons. Since the positron propagation distance decreases with energy, the number of pulsars
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We present the results of new calculations of the energy spectra of cosmic ray electrons, positrons and also positron fraction under assumption that both electrons and positrons are generated by the
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We present a comprehensive discussion about the origin of the features in the leptonic component of the cosmic-ray spectrum. Working in the framework of a up-to-date CR transport scenario tuned on
Contribution of supernova remnants to the cosmic-ray electron AMS-02 data
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  • Physics
    Journal of Physics: Conference Series
  • 2021
The Alpha Magnetic Spectrometer (AMS-02) experiment on board of the International Space Station is revolutionizing our understanding of cosmic rays. AMS-02 Collaboration has released the most precise


Galactic electrons and positrons at the Earth: new estimate of the primary and secondary fluxes
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Possible Contribution to Electron and Positron Fluxes from Pulsars and their Nebulae
The AMS-02 experiment confirms the excess of positrons in cosmic rays (CRs) for energy above 10 GeV with respect to the secondary production of positrons in the interstellar medium. This is
Galactic secondary positron flux at the Earth
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The Energy Spectra and Relative Abundances of Electrons and Positrons in the Galactic Cosmic Radiation
Observations of cosmic-ray electrons and positrons have been made with a new balloon-borne detector, the High-Energy Antimatter Telescope (HEAT), which was first flown in 1994 May from Fort Sumner,
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Recent results from the PAMELA satellite indicate the presence of a large flux of positrons (relative to electrons) in the cosmic ray spectrum between approximately 10 and 100 GeV. As annihilating
Three-dimensional model of cosmic-ray lepton propagation reproduces data from the Alpha Magnetic Spectrometer on the International Space Station.
It is shown that in this approach, and accounting for AMS-02 results, the contribution of nearby accelerators to the fluxes at very high energy can be significantly reduced, thus avoiding any tension with anisotropy upper limits.