EG124
A sub-kpc separation dual radio-AGN?
The existence of dual supermassive black holes (SMBHs) is a consequence of the hierarchical growth of galaxies. Simultaneous activity of the SMBHs and enhanced star formation are expected when the separation is below 10 kpc. The challenges of detecting sub-kpc scale separation dual AGN, resolution limits and obscuration, can be overcome by radio interferometric observations. A recent high-resolution multi-wavelength, optical, infrared, and mm study of the merging system UGC4211 indicates the existence of two AGN in the system at 230 pc separation. Dual-frequency EVN+e-MERLIN observation can strengthen the dual AGN claim for the system, this could then be the third confirmed system with dual radio-emitting AGN at sub-kpc separation. Alternatively, in the case of the non-detection of compact emission, it can question the interpretation of the lower-resolution radio data.
Observation pages at the EVN archive:
Context for this dataThis data is part of the archive of VLBI data maintained by JIVE on behalf of the EVN, a network of radio telescopes located primarily in Europe and Asia, with additional antennas in South Africa. The EVN archive itself has the DOI https://doi.org/10.17616/R3Z197