Extended Data Fig. 5: RM index.
From: A fast radio burst source at a complex magnetized site in a barred galaxy
a, Histogram of normalized RM index deviation defined as (β − 2)/σβ, in which σβ is the uncertainty of β with 68% confidence level. b, RM as a function of time. Orange dots are for selected bursts with (β − 2)/σβ  ≤  1 and the measurements not selected are blue dots.
