The Jet Paths of Radio AGN and their Cluster Weather

We studied bent radio sources within X-ray galaxy groups in the COSMOS and XMM-LSS fields, using radio data from the MeerKAT International GHz Tiered Extragalactic Explorations data release 1 (MIGHTEE-DR1) at 1.2-1.3 GHz (angular resolutions of 8.9" and 5"; ~ 3.5 and 5.5 uJy/beam). Bent ra...

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Veröffentlicht in:arXiv.org 2024-12
Hauptverfasser: Vardoulaki, E, Backöfer, V, Finoguenov, A, Vazza, F, Comparat, J, Gozaliasl, G, Whittam, I H, Hale, C L, Weaver, J R, Koekemoer, A M, Collier, J D, Frank, B, Heywood, I, Sekhar, S, Taylor, A R, Pinjarkar, S, Hardcastle, M J, Shimwell, T, Hoeft, M, White, S V, F An, Tabatabaei, F, Randriamanakoto, Z, Filipovic, M D
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Sprache:eng
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Zusammenfassung:We studied bent radio sources within X-ray galaxy groups in the COSMOS and XMM-LSS fields, using radio data from the MeerKAT International GHz Tiered Extragalactic Explorations data release 1 (MIGHTEE-DR1) at 1.2-1.3 GHz (angular resolutions of 8.9" and 5"; ~ 3.5 and 5.5 uJy/beam). Bent radio active galactic nuclei (AGN) were identified via visual inspection. Our analysis included 19 bent radio AGN in the COSMOS field and 17 in the XMM-LSS field which lie within X-ray galaxy groups (2x10^13 >= M200c/Msun = 3x10^14). We investigated the relationship between their bending angle (BA) - the angle formed by the jets or lobes of two-sided radio sources associated with AGN - and properties of their host galaxies and large-scale environment probed by the X-ray galaxy groups. Our key findings are: a) In the XMM-LSS field, we observed a strong correlation between the linear projected size of the bent AGN, the group halo mass, and the projected distance from the group centre. This trend, consistent with previous studies, was not detected in the COSMOS sample. b) The BA is a function of environmental density, with the type of medium playing a significant role. Additionally, at z
ISSN:2331-8422