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The nearby face-on spiral galaxy NGC 2617 underwent an unambiguous'inside-out' multi-wavelength outburst in Spring 2013, and a dramatic Seyferttype change probably between 2010 and 2012, with the emergence of broad opticalemission lines. To search for the jet activity associated with this variableaccretion activity, we carried out multi-resolution and multi-wavelength radioobservations. Using the very long baseline interferometric (VLBI) observationswith the European VLBI Network (EVN) at 1.7 and 5.0 GHz, we find that NGC 2617shows a partially synchrotron self-absorbed compact radio core with asignificant core shift, and an optically thin steep-spectrum jet extendingtowards the north up to about two parsecs in projection. We also observed NGC2617 with the electronic Multi-Element Remotely Linked Interferometer Network(e-MERLIN) at 1.5 and 5.5 GHz, and revisited the archival data of the VeryLarge Array (VLA) and the Very Long Baseline Array (VLBA). The radio core had astable flux density of about 1.4 mJy at 5.0 GHz between 2013 June and 2014January, in agreement with the expectation of a supermassive black hole in thelow accretion rate state. The northern jet component is unlikely to beassociated with the 'inside-out' outburst of 2013. Moreover, we report thatmost optically selected changing-look AGN at z<0.83 are sub-mJy radio sourcesin the existing VLA surveys at 1.4 GHz, and it is unlikely that they are moreactive than normal AGN at radio frequencies.

A compact core-jet structure in the changing-look Seyfert NGC 2617