CHIME/FRB Detection of the Original Repeating Fast Radio Burst Source FRB 121102

Understand

We report the detection of a single burst from the first-discovered repeating Fast Radio Burst source, FRB 121102, with CHIME/FRB, which operates in the frequency band 400-800 MHz.

• The detected burst occurred on 2018 November 19 and its emission extends down to at least 600 MHz, the lowest frequency detection of this source yet.
• The burst, detected with a significance of 23.7$\sigma$, has fluence 12$\pm$3 Jy ms and shows complex time and frequency morphology.
• The 34 ms width of the burst is the largest seen for this object at any frequency.