Fast radio bursts (FRBs) are enigmatic, extreme transients. The brightness temperature of a FRB reaches ~10^{35} K, implying coherent emission. FRBs occur thousands per day over the entire sky, with a millisecond duration. FRBs are now established as an extragalactic source. And recently it has been confirmed that at least some FRBs are produced by bursts of magnetars; magnetars are neutron stars with super strong magnetic fields of order >10^{14} Gauss. In addition, a cosmology using FRBs is being developed, including probing the missing baryon and beginning statistical analysis with a number of FRBs being detected. The progress of the FRB research is very rapid, and important announcements are being made almost every month.
The progress of not only FRBs but also the other cosmic transients has been greatly boosted by the development of multi-messenger astronomy and big surveys. Therefore it is a good opportunity to bring experts of high energy astrophysics and cosmology for discussion.
JSPS KAKENHI
No. 22H00130 "Standard Model and Cosmology of Fast Radio Bursts"
No. 18H01215 "Theoretical Study of High-Energy Multimessengers from PeV Sources"
No. 17H06362 "Gravitational Wave Sources Probed with High Energy Observations"
No. 17H06357 "Gravitational wave physics and astronomy: Genesis"
