Detectability of large correlation length inflationary magnetic field with Cherenkov telescopes

Abstract

Magnetic fields occupying the voids of the large scale structure may be a relic from the Early Universe originating from either Inflation or from cosmological phase transitions. We explore the possibility of identifying the inflationary origin of the void magnetic fields and measuring its parameters with gamma-ray astronomy methods. The large correlation length inflationary field is expected to impose a characteristic asymmetry of extended gamma-ray emission that is correlated between different sources on the sky. We show that a set of nearby blazars for which the extended emission is observable in the 0.1-1 TeV band with CTA can be used for the test of inflationary origin of the void magnetic fields.

8 pages, 6 figures, accepted to JETP

References in corpus (6)

• Magnetic fields from inflation?
• Magnetic Field Seeding by Galactic Winds
• Evolution of Primordial Magnetic Fields from Phase Transitions
• A method of measurement of extragalactic magnetic fields by TeV gamma ray telescopes
• Long-term Monitoring on Mrk 501 for Its VHE gamma Emission and a Flare in October 2011
• A Vector Potential implementation for Smoothed Particle Magnetohydrodynamics

Cited by in corpus (1)

• Modelling the propagation of very-high-energy gamma rays with the CRbeam code: Comparison with CRPropa and ELMAG codes