Ninety percent circular polarization detected in a repeating fast radio burst

Fast radio bursts (FRBs) are extra-galactic sources with unknown physical mechanisms. They emit millisecond-duration radio pulses with isotropic equivalent energy of 10^{36}\sim10^{41} ergs. This corresponds to a brightness temperature of FRB emission typically reaching the level of 10^{36} K, but can be as high as above 10^{40} K for sub-microsecond... Show more