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The nearby galaxy NGC 3115 contains a known radio-emitting, low-luminosityactive galactic nucleus (AGN), and was recently claimed to host a candidate AGNdisplaced 14.3 pc from the galaxy's optical photocenter. Our goal is tounderstand whether this represents a single offset AGN, an AGN in orbit arounda central black hole, or something else. We present a new, sensitive (RMS = 4.4$\mu$Jy beam$^{-1}$) 10 GHz image, which finds evidence for only one AGN. Weplace a stringent limit on the radio luminosity of any secondary supermassiveblack hole of $L_{10~\rm{GHz}}<5.8\times10^{33}$ ergs/s. An analysis of therelative positioning of the radio core, X-ray nucleus, and stellar bulge inthis galaxy indicate that the radio source is centrally located, and not offsetfrom the galactic bulge. This provides an argument against a single offset AGNin NGC 3115, however does not provide conclusive evidence against the purportedoffset AGN as an in-spiralling secondary black hole.

Investigating the Candidate Displaced Active Galactic Nucleus in NGC 3115