Speaker
Gabriella Di Gennaro
(INAF-IRA)
Description
Radio relics are elongated diffuse sources located in the outskirts of merging galaxy clusters, tracing merger-induced shocks. In the last decade, high-resolution observations - up to a fraction of an arcsecond - at GHz frequencies have revealed that they are characterized by filamentary structures, challenging our understanding of these sources.
In this talk, I will present the first images of radio relics as seen by the International LOFAR Telescope (ILT). These novel observations, together with their high-frequency counterparts, are essential to define the exact place of particle acceleration which is crucial for theoretical models.
Author
Gabriella Di Gennaro
(INAF-IRA)
