6533b858fe1ef96bd12b653d

RESEARCH PRODUCT

Interpretation of AMS-02 electrons and positrons data

Roberto A. LinerosFiorenza DonatoFiorenza DonatoNicolao FornengoNicolao FornengoAndrea VittinoAndrea VittinoAndrea VittinoM. Di MauroM. Di MauroM. Di Mauro

subject

PhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]ProtonAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstronomy and AstrophysicsCosmic rayAstrophysicsElectron7. Clean energyAstrophysics - Astrophysics of GalaxiesSecondary electronsInterstellar mediumSupernovaHigh Energy Physics - PhenomenologyPositronHigh Energy Physics - Phenomenology (hep-ph)PulsarAstrophysics of Galaxies (astro-ph.GA)Astrophysics - High Energy Astrophysical Phenomena

description

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 electron and positron fluxes originate from interactions on the interstellar medium of primary cosmic rays, for which we derive a novel determination by using AMS-02 proton and helium data. Primary positrons and electrons from pulsar wind nebulae in the ATNF catalog are included and studied in terms of their most significant (while loosely known) properties and under different assumptions (average contribution from the whole catalog, single dominant pulsar, a few dominant pulsars). We obtain a remarkable agreement between our various modeling and the AMS-02 data for all types of analysis, demonstrating that the whole AMS-02 leptonic data admit a self-consistent interpretation in terms of astrophysical contributions.

10.1088/1475-7516/2014/04/006http://hdl.handle.net/2318/145778