Implications of fast radio bursts for superconducting cosmic strings

Abstract

Highly beamed, short-duration electromagnetic bursts could be produced by superconducting cosmic string (SCS) loops oscillating in cosmic magnetic fields. We demonstrated that the basic characteristics of SCS bursts such as the electromagnetic frequency and the energy release could be consistently exhibited in the recently discovered fast radio bursts (FRBs). Moreover, it is first showed that the redshift distribution of the FRBs can also be well accounted for by the SCS burst model. Such agreements between the FRBs and SCS bursts suggest that the FRBs could originate from SCS bursts and thus they could provide an effective probe to study SCSs. The obtained values of model parameters indicate that the loops generating the FRBs have a small length scale and they are mostly formed in the radiation-dominated cosmological epoch.

10 pages, 1 figure, accepted for publication in JCAP

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• A Data-Driven Technique Using Millisecond Transients to Measure the Milky Way Halo
• Inflation, String Theory and Cosmology
• Fast radio bursts: do repeaters and non-repeaters originate in statistically similar ensembles
• Massive black holes at high redshifts from superconducting cosmic strings
• Neutron Star Physics in the Square Kilometer Array Era : An Indian Perspective
• Earth-mass primordial black hole mergers as sources for non-repeating FRBs
• Dynamical simulations of colliding superconducting strings
• Diverse origins for non-repeating fast radio bursts: Rotational radio transient sources and cosmological compact binary merger remnants
• Magnetic reconnection in the wakes of cosmic strings