Cosmic rays of leptons from Pulsars and Supernova Remnants

TL;DR

This paper reviews recent experimental findings of cosmic ray leptons and explores astrophysical sources like supernovae and pulsars as explanations for observed anomalies in electron and positron fluxes.

Contribution

It provides an updated analysis of astrophysical sources of cosmic ray leptons and discusses their potential to explain observed flux anomalies.

Findings

Supernovae can account for positron excess above 10 GeV.

Pulsars are potential sources for high-energy electron and positron flux features.

Updated models improve understanding of cosmic ray lepton origins.

Abstract

The latest results from PAMELA and FERMI experiments confirm the necessity to improve theoretical models of production and propagation of galactic electrons and positrons. There are many possible explanations for the positron excess observed at energies larger than 10 GeV and for some features around 1 TeV in the total flux of electrons and positrons. Supernovae are astrophysical objects with the potential to explain these observations. In this work, we present an updated study of the astrophysical sources of lepton cosmic rays and the possible and the possible explanation of the anomalies in terms of astrophysical sources.