Speaker
Description
Optical observations of active galactic nuclei (AGNs) often reveal kpc-scale [O III] outflows that align with radio jet directions. These outflows, particularly in the inner nuclear regions, might have relatively high temperatures and powers, produce detectable free-free emissions and form non-thermal shocks in complex nuclear regions. The nearby dwarf galaxy NGC 4395 hosts an AGN with an extremely low mass (~10000 solar masses) black hole. In the inner pc-scale region, we have identified a non-thermal shock region, likely resulting from a collimated outflow with thermal (free-free) continuum emission. This is probably the only known source displaying such a relatively hot and powerful outflow to date. The upcoming powerful SKA-Mid would allow us to accurately image these pc-scale thermal outflows, study outflow astrophysics and probe AGN feedback.
