Rubinur Khatun is a postdoctoral fellow in Cosmology and Extragalactic Astronomy research group, ITA, UiO.
Radio outflows in Seyfert galaxies have primarily been studied at higher frequencies (>1 GHz) in the literature with long-baseline interferometers that fail to pick up low surface brightness emission distributed over larger angular scales. Such high-frequency surveys miss the detection of faint kpc-scale radio structures (KSRs) that are fairly common in Seyfert galaxies.
In this project, we are studying a sample of 28 well-selected Seyfert galaxies from the larger samples showing signatures of KSRs with Giant Metrewave Radio Telescope (GMRT) to detect full extent of such KSRs. I will be presenting implications of these detections to enlighten our understanding of the KSR in low- luminosity AGN.
Episodic AGN activity in NGC 2639: The radio multi-band contours overlaid with the optical image. The color image is the SDSS r-band image. The white contours show the 735 MHz upgraded Giant Meterwave Telescope (uGMRT), which showed a jet of size ∼9 kpc in the north–east–south– west direction. The black contours are from the 5.5 GHz VLA total intensity image with the ∼1.5 kpc jet in the north–south direction. Credits: Rubinur et al. (2024), Rao et al. (2023)
