Lower bound on the local extragalactic magnetic field
Copyright policy )Lower bound on the local extragalactic magnetic field
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, $B> 10^{-8}$ 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.
Includes extensive discussion of particle acceleration above 10^20 eV in the hot spot-like region of Cen A
- Northwestern University United States
- Northeastern University United States
- NORTHWESTERN UNIVERSITY United States
- Northwestern University United States
- Northeastern University United States
High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics
High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics
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