Landing page for project EY051

Galaxy interactions might also trigger powerful AGN activity and could help "seed" black holes develop rapidly via accretion and merger in the early Universe. Along with running comprehensive simulations, identifying similar instances in nearby dwarf galaxies mergers could strongly support their existence. The dwarf galaxy J101747+393207 has recently been identified as a rarely-seen compact merger in the low-mass regime. It hosts a (candidate) intermediate-mass black hole and shows the highest X-ray luminosity among dwarf galaxies at redshift z<0.2. At radio, the source shows an ongoing flare with a probably GHz-peaked radio spectrum. To search for the most direct evidence for a newborn jet with an age of 10-30 years from the unique source, we propose to run dual-frequency EVN observations. Such pilot inputs would enable an examination of the nature of its radio emission, i.e. compact newborn ejecta with a very steep spectrum, strengthen the scenario of short IMBH jet lifetimes, and provide direct and compelling evidence for AGN activity triggered by the most frequent dwarf-dwarf mergers in the Universe.

This 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