Statistical properties of the repeating fast radio burst source FRB 121102

Understand

Currently, FRB 121102 is the only fast radio burst source that was observed to give out bursts repeatedly.

• It shows a high repeating rate, with more than one hundred bursts being spotted, but with no obvious periodicity in the activities.
• Thanks to its repetition, the source was well localized with a subarcsecond accuracy, leading to a redshift measurement of about 0.2.
• FRB 121102 is a unique source that can help us understand the enigmatic nature of fast radio bursts.