Abstract of the proposal for the experiment EN005G

Precise localizations are critical for understanding the nature of Fast Radio Bursts (FRBs). FRB 121102, the first repeating FRB, is the first (and only) FRB to be precisely localized. Observations using the VLA and EVN led to the association of FRB 121102 with a star-forming region within a low-metallicity dwarf galaxy, discovered a coincident persistent radio source, and developed an idea of the type of extreme environment FRB 121102 is found to reside in. More recently, a population of repeating FRBs has been discovered using the CHIME telescope. However, the nature of these sources, and their relation to the apparently non-repeating FRBs, remains a mystery.
To target these questions, we are proposing an e-EVN survey of 7 repeating FRBs that have been discovered by the CHIME/FRB Collaboration. We aim to precisely localize the sources and study any persistent radio counterpart. The precise localization of even just one of these sources would already provide a unique comparison to FRB 121102, and a significant step forward towards understanding FRBs.