Probing the interplay between nearby AGNs and their host galaxies using multi-wavelength data
Abstract
The supermassive black hole mass scaling relations show that the supermassive black holes at centres of the galaxies and their host galaxies co-evolve suggesting a feedback mechanism. The interplay between the AGN and host galaxy can be probed in detail for the nearby AGNs with reasonable spatial resolution at optical and radio wavelengths obtained from the ground. The Siding Spring Southern Seyfert Spectroscopic Snap-Shot Survey (S7) aims to understand this interaction using multi-wavelength data of a sample of nearby AGNs. The radio observations are ongoing using the Giant Metre-Wave Radio Telescope, Pune and the Australia Telescope Compact Array, Australia. Many individual galaxies in our sample have been studied in detail. We have observed most of our objects have an extended emission-line region that is a few kpc across. Star-formation regions often have ring-like structures, which may be interpreted as the Inner Lindblad Resonance. Our GMRT data and archival radio images of some of the objects have shown radio structures aligned with the [OIII] regions suggestive that the jets from the AGNs are aligned with the axis of the inner star formation ring. We have observed one of our targets with the Chandra X-Ray telescope and our results confirm that this merging system has two accreting black holes. Some of these results will be presented.
- Publication:
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43rd COSPAR Scientific Assembly. Held 28 January - 4 February
- Pub Date:
- January 2021
- Bibcode:
- 2021cosp...43E1451S