A lower bound on the local extragalactic magnetic field
High Energy Physics - Phenomenology
2009-11-07 v3 Astrophysics
Abstract
Assuming that the hard gamma-ray emission of Cen A is a result of synchrotron radiation of ultra-relativistic electrons, we derive a lower bound on the local extragalactic magnetic field, G. This result is consistent with (and close to) upper bounds on magnetic fields derived from consideration of cosmic microwave background distortions and Faraday rotation measurements.
Keywords
Cite
@article{arxiv.hep-ph/0106217,
title = {A lower bound on the local extragalactic magnetic field},
author = {Luis A. Anchordoqui and Haim Goldberg},
journal= {arXiv preprint arXiv:hep-ph/0106217},
year = {2009}
}
Comments
Includes extensive discussion of particle acceleration above 10^20 eV in the hot spot-like region of Cen A