20–27 Mar 2026
Wild View Resorts
Africa/Gaborone timezone

A wide-band characterisation of the lives of radio galaxies in galaxy clusters

Not scheduled
20m
Wild View Resorts

Wild View Resorts

Plot 80 President Avenue, Kasane, Botswana
Online - Poster Presentation 10 S&E poster Science & Engineering

Speaker

Mrs Katlego Morakile (University of Pretoria)

Description

We investigate the dynamics and energetics of selected peculiar radio galaxies (bent-tailed, asymmetric, and disrupted sources). We take particular interest in the influence of the local environment on the morphology and properties of these radio galaxies by comparing the characteristics of the galaxies themselves with their cluster environment, sampling a variety of representative cluster conditions (core and periphery). This environmental study focuses on four Planck-selected galaxy clusters located within the LOFAR-MeerKAT overlapping zone. This project is made possible by leveraging the synergies between MeerKAT, LOFAR and the uGMRT to acquire the spectral coverage necessary for a fully-constrained spectral index and spectral ageing analysis, using new observations from MeerKAT (UHF band) and uGMRT (Band 3 and 5), which we have acquired as PI, complementing data from the LOFAR Two-metre Sky Survey (LoTSS) Data Release 2 (DR2). This talk will present MeerKAT and uGMRT imaging results, as well as the preliminary spectral index analysis results produced using LOFAR, uGMRT, and MeerKAT datasets. Thus far, we have achieved noise levels and resolution down to ~30 microJy/beam (12.8" X 12") and ~40 microJy/beam (6.5" X 6") for MeerKAT and uGMRT band 3, respectively.

Stream Science or Engineering

Primary author

Mrs Katlego Morakile (University of Pretoria)

Co-authors

Prof. Kshitij Thorat (University of Pretoria) Dr Etienne Bonnassieux (Université de Bordeaux) Prof. Tiziana Venturi (Istituto Nazionale di Astrofisica (INAF))

Presentation materials

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