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4 papers · 1 filter
High-energy antiprotons from old supernova remnants
Pasquale Blasi, Pasquale D. Serpico
A recently proposed model (arXiv:0903.2794) explains the rise in energy of the positron fraction measured by the PAMELA satellite in terms of hadronic production of positrons in ag…
Polarization in Pulsar Wind Nebulae
D. Volpi, L. Del Zanna, E. Amato +1
The main goal of our present work is to provide, for the first time, a simple computational tool that can be used to compute the brightness, the spectral index, the polarization, t…
The origin of the positron excess in cosmic rays
Pasquale Blasi
We show that the positron excess measured by the PAMELA experiment in the region between 10 and 100 GeV may well be a natural consequence of the standard scenario for the origin of…
High energy emission from galaxy clusters and particle acceleration due to MHD turbulence
G. Brunetti, P. Blasi, R. Cassano +1
In the next years the FERMI gamma ray telescope and the Cherenkov telescopes will put very stringent constraints to models of gamma ray emission from galaxy clusters providing cruc…