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The next generation interferometric radio telescope, the Square KilometreArray (SKA), which will be the most sensitive and largest radio telescope everconstructed, could greatly contribute to the detection, survey andcharacterization of Gamma Ray Bursts (GRBs). By the SKA, it will be possible toperform the follow up of GRBs even for several months. This approach would beextremely useful to extend the Spectrum Energetic Distribution (SED) from thegamma to the to radio band and would increase the number of radio detectableGRBs. In principle, the SKA could help to understand the physics of GRBs bysetting constraints on theoretical models. This goal could be achieved bytaking into account multiple observations at different wavelengths in order toobtain a deeper insight of the sources. Here, we present an estimation of GRBradio detections, showing that the GRBs can really be observed by the SKA. Theapproach that we present consists in determining blind detection rates derivedby a very large sample consisting of merging several GRB catalogues observed bycurrent missions as Swift, Fermi, Agile and INTEGRAL and by previous missionsas BeppoSAX, CGRO, GRANAT, HETE-2, Ulysses and Wind. The final catalogue counts7516 distinct sources. We compute the fraction of GRBs that could be observedby the SKA at high and low frequencies, above its observable sky. Consideringthe planned SKA sensitivity and through an extrapolation based on previousworks and observations, we deduce the minimum fluence in the range 15-150 keV.This is the energy interval where a GRB should emit to be detectable in theradio band by the SKA. Results seem consistent with observational capabilities.

Possible Gamma-Ray Burst radio detections by the Square Kilometre Array. New perspectives