4C\u200918.47: A Recoiling AGN Candidate in the Radio and Infrared

Abstract

Recoiling active galactic nuclei (AGNs) can be formed after the merging of two galaxies and their central supermassive black holes. A novel method recently revealed a handful of recoiling AGN candidates. We report on the arcsec-scale radio structure of one of them, 4C\u200918.47, a prominent radio emitter. We also present its infrared light curve, indicating significant long-term variability.