Fast Radio Bursts counterparts in the scenario of supergiant pulses

TL;DR

This paper explores the potential link between Fast Radio Bursts and ultraluminous X-ray sources within the supergiant pulses model, analyzing positional correlations and discussing future observational prospects.

Contribution

It introduces the idea that some FRB sources could be ultraluminous X-ray sources and assesses their correlation with galaxy positions, providing a framework for future tests of the supergiant pulses model.

Findings

No significant correlation found between FRB positions and galaxies.

FRBs could be associated with ultraluminous X-ray sources according to the model.

Future observations could confirm or refute the supergiant pulses hypothesis.

Abstract

We discuss identification of possible counterparts and persistent sources related to Fast Radio Bursts (FRBs) in the framework of the model of supergiant pulses from young neutron stars with large spin-down luminosities. In particular, we demonstrate that at least some of sources of FRBs can be observed as ultraluminous X-ray sources (ULXs). At the moment no ULXs are known to be coincident with localization areas of FRBs. We searched for a correlation of FRB positions with galaxies in the 2MASS Redshift survey catalogue. Our analysis produced statistically insignificant overabundance ($p$-value $\approx 4\%$) of galaxies in error boxes of FRBs. In the very near future with even modestly increased statistics of FRBs and with the help of dedicated X-ray observations and all-sky X-ray surveys it will be possible to decisively prove or falsify the supergiant pulses model.