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SUMMARY:Unveiling AGN Outflows: A High Resolution Morphological Study with
  LOFAR-VLBI - Emmy Escott (Durham)
DTSTART:20250411T103000Z
DTEND:20250411T113000Z
UID:TALK226795@talks.cam.ac.uk
CONTACT:Sandro Tacchella
DESCRIPTION:How AGN (Active Galactic Nuclei) feedback operates is one of t
 he unsolved mysteries plaguing modern day astronomy. AGN outflows could ex
 plain how this feedback operates and\, to investigate this\, I use the [O 
 III] emission line as a tracer of ionised outflows. In this talk\, I will 
 present work investigating the link between low-frequency radio emission\,
  using the LOFAR Two-meter Sky Survey Deep Fields at 144 MHz\, and [O III]
  kinematics\, measured from SDSS spectroscopy\, for a sample of optically 
 selected AGN. We discover that radio detected AGN are more likely to host 
 an [O III] outflow compared to radio non-detected AGN. We observe a strong
 er broad\, blue-shifted component in the radio-detected AGN\, implying a p
 rofound link between low-frequency radio emission and [OIII] outflows.\nTo
  further link AGN outflows to low-frequency radio emission\, we harness th
 e power of widefield VLBI (Very Long Baseline Interferometry) processing a
 nd imaging by incorporating the international stations of LOFAR into the d
 ata reduction process\, to obtain sub-arcsecond radio images. To conclude 
 this talk\, I will present the first 0.3” resolution image at 144 MHz of
  the Boötes Deep Field and early results linking high resolution radio mo
 rphologies at 144 MHz to the presence of [O III] outflows.
LOCATION:Ryle Seminar Room\, KICC + online
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