Fast Radio Bursts with the Northern Cross FRB Project
Davide Pelliciari (INAF - IRA)
Tuesday 26/11/2024 @ 14:00, Sala Antonio Sollima (IV piano Battiferro)
Fast Radio Bursts (FRBs) are short, energetic radio flashes of cosmological origin, with typical durations of a millisecond, during which they can release up to 10^43 erg. One of the outstanding open questions is related to the nature of the FRB progenitors, i.e. which sources they are associated to. The observation of FRB 20200428 from the Galactic magnetar SGR J1935+2154 provided strong support to the magnetar–FRB link, although which fraction of the FRB population can be linked to magnetars remains an open question. Although the majority of FRBs are observed only once, the $\sim 10%$ of the sources present repeated emission, with a handful of the latter being hyperactive sources with hundreads of bursts per hour. In this talk I present the results from the Northern Cross FRB project, which aims at investigating the FRB phenomenon with radio observations conducted with the Northern Cross radio telescope, located in Medicina, Italy. I present two long monitoring campaigns, the first aiming to investigate deeply the FRB-magnetar connection searching for bursts in nearby star-forming galaxies, and the second one focusing on the burst rate and energy distribution of FRB 20220912A, one of the most active FRBs known.