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Tuesday

Schedule

id
date time
PM2
17:00
Abstract
Infrared Variability of Active Galactic Nuclei
Tuesday

Abstract details

id
Infrared Variability of Active Galactic Nuclei
Date Submitted
2021-04-27 00:00:00
Joy Oluchi
Anih
Keele University
Beauty of Astronomical Dust
Poster
Joy Oluchi Anih, Dr Jacco Van Loon
We are using the high sensitivity and angular resolution of the VISTA Magellanic Clouds (VMC) multi-epoch survey at 1-2.5 micron as a basis for characterising the variability of Active Galactic Nuclei (AGN) out to redshift >1. Two AGN, at redshifts 0.14 and 1 that are dominated in the infrared (IR) by the emission from nuclear dust are studied in-depth, and the prevalence of IR variability is studied in a larger sample. We are using the hot dust (variability) as a tracer of the accretion instabilities, but the dust grains are subject to extreme conditions. The findings are placed in context of optical (OGLE) and mid-IR (Spitzer, WISE) variability studies and new radio data from the Australian SKA Pathfinder to identify the causes for the near-IR variations.

Please note: I will be using hot dust variability as a tracer.

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