EY035
Imaging the pc-scale jet in RGG 9 at 5 GHz
The population of non-stellar low-mass black holes (10^2--10^6 solar mass) in nearby dwarf galaxies plays a "ground truth" role in exploring the growth of black holes and galaxies in the early Universe. To date, only about ten ~10^5-solar-mass intermediate-mass black holes (IMBHs) are firmly identified by multi-band observations. The dwarf galaxy SDSS J090613.77+561015.2 (RGG 9) hosting an IMBH has a relatively bright radio counterpart and spatially extended AGN-driven gas outflows in its halo. Our EVN 1.6 GHz observations revealed two 1-mJy jet components with a separation of ~49 pc. Compared to the first known IMBH jet in NGC 4395, the jet is 100 000 times more powerful and 160 times larger. We propose 12-hour EVN+e-MERLIN observations at 1.6 GHz to confirm potential extended jet up to the kpc scale, i.e. a "smoking gun" evidence for the jet feedback in a low-mass galaxy. We also require 6-hour observations at 5 GHz to justify the classification of the more compact feature as the 2nd known jetted IMBH hinted via its spectral index and reveal the inner jet structure.
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