Extended Data Fig. 2: Spectrosopic measurements of putative host galaxy MCG+14-02-011.
From: A pulsar-like polarization angle swing from a nearby fast radio burst
a, Pan-STARRS 3π (PS1) g-band image of the FRB 20221022A field. Arrows indicate the likely FRB host galaxy and the foreground star. The blue rectangle shows the position and orientation of the slit in the GTC observations. b, Optical spectrum covered by the slit in the GTC observations. The two grey shaded regions mask artefacts in the spectrum.
