ItemArticle

Investigation of the Axe-shaped Radio Galaxy J1051+5523 with uGMRT

Title
Investigation of the Axe-shaped Radio Galaxy J1051+5523 with uGMRT
Creator
Sudheesh, T.P.; Kale, Ruta; Jithesh, V.; Santra, Ramananda; Ishwara-Chandra, C.H.; Jacob, Joe
Description
We present a multifrequency study of the bent-tail radio galaxy J1051+5523, located in the galaxy cluster WHL J105147.4+552309. This wide-angle tail (WAT) galaxy exhibits a complex radio morphology, characterized by a right-angled bend in the northern jet, which resembles an axe, and multiple kinks in the southern jet, as observed in the deep uGMRT radio observations. The radio power of J1051+5523 at 150 MHz is estimated to be, placing it in the transition zone between FRI and FRII radio galaxies. The spectral index map reveals a flat core and relatively flat lobes, which may indicate ongoing particle acceleration or a relatively young population of relativistic electrons in the lobes. Further, we estimate the equipartition magnetic fields, and spectral ages of the northern and southern lobes to be approximately 150 and 153 Myr, respectively, suggesting a long-lived radio source with sustained active galactic nucleus (AGN) activity. A relative velocity of 278 2643 is obtained for the host galaxy. Due to the large uncertainty associated with the relative velocity estimates, the contribution of ram pressure to the jet bending remains inconclusive. The low mass of the host cluster () and the lack of diffuse X-ray emission indicate a reduced likelihood of major mergers, but minor mergers or interactions remain possible. We propose that the observed WAT morphology of J1051+5523 is likely shaped by a combination of ram pressure and/or buoyant forces within the cluster environment. 2025 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
Source
Monthly Notices of the Royal Astronomical Society;Volume;543;Issue;3;pp.2046-2057
Date
01-01-2025
Publisher
Oxford University Press
Subject
galaxies: active; galaxies: clusters: intracluster medium; radiation mechanisms: non-thermal; radio continuum: galaxies
Coverage
Sudheesh T.P., Department of Physics and Electronics, Christ University, Hosur Main Road, Bengaluru, 560029, India; Kale R., National Centre for Radio Astrophysics, TIFR, Post Bag No. 3, Ganeshkhind, Pune, 411007, India; Jithesh V., Department of Physics and Electronics, Christ University, Hosur Main Road, Bengaluru, 560029, India; Santra R., National Centre for Radio Astrophysics, TIFR, Post Bag No. 3, Ganeshkhind, Pune, 411007, India; Ishwara-Chandra C.H., National Centre for Radio Astrophysics, TIFR, Post Bag No. 3, Ganeshkhind, Pune, 411007, India; Jacob J., Department of Physics, Newman College, Kerala, Thodupuzha, 685585, India
Rights
All Open Access; Gold Open Access
Relation
ISSN: 358711; CODEN: MNRAA
Format
online
Language
English
Type
Article

Citation

Sudheesh, T.P.; Kale, Ruta; Jithesh, V.; Santra, Ramananda; Ishwara-Chandra, C.H.; Jacob, Joe, “Investigation of the Axe-shaped Radio Galaxy J1051+5523 with uGMRT,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/22817.

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