Speaker
Fiorenza Donato
(University of Turin )
Description
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 flux at different energies.
The Fermi-LAT Collaboration has provided a new
energy spectrum for the upper bounds on the e+ + e- dipole anisotropy. This observable
can bring information on the emission from local Galactic sources, notably measured with
high precision at radio frequencies. We develop a framework in which e+ and e- measured
at Earth from GeV up to tens of TeV energies have a composite origin. We discuss in particular the
constraints imposed by the most recent data
on the e+ + e- dipole anisotropy.
Primary author
Fiorenza Donato
(University of Turin )
Co-authors
Silvia Manconi
Mattia Di Mauro
(NASA)
