An active repeating FRB
Xu, Heng
I will talk about the stories of an active repeating FRB 20201124A. We had monitored this FRB using FAST for about two month, our observations reveal irregular Faraday rotation measure (RM) followed by a constant RM, we detected circular polarization including one burst with 75% circular polarization, oscillations in linear/circular polarization and polarization angle as functions of wavelength were detected. Out optical collaborators reveal that the FRB's host galaxy is a barred-spiral galaxy. I will discuss the implications of our results.