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One Source, Two Source(s): Ribs and Tethers

Knowles, Kenda; Rudnick, Lawrence; Kolokythas, Konstantinos +1 more

We present the unique and challenging case of a radio galaxy in Abell 3266 observed as part of the MeerKAT Galaxy Cluster Legacy Survey. It has quasi-periodic bright patches along the tail which connect to never-before-seen thin transverse extensions, which we call "ribs", reaching up to ∼50 kpc from the central axis of the tail. At a distance of …

Exploring New Redshift Indicators for Radio-Powerful AGN

Carvajal, Rodrigo; Matute, Israel; Afonso, José +4 more

Active Galactic Nuclei (AGN) are relevant sources of radiation that might have helped reionising the Universe during its early epochs. The super-massive black holes (SMBHs) they host helped accreting material and emitting large amounts of energy into the medium. Recent studies have shown that, for epochs earlier than z∼5, the number density of SMB…

A Multiwavelength Dynamical State Analysis of ACT-CL J0019.6+0336

Hilton, Matt; Moodley, Kavilan; Wollack, Edward J. +8 more

In our study, we show a multiwavelength view of ACT-CL J0019.6+0336 (which hosts a radio halo), to investigate the cluster dynamics, morphology, and ICM. We use a combination of XMM-Newton images, Dark Energy Survey (DES) imaging and photometry, SDSS spectroscopic information, and 1.16 GHz MeerKAT data to study the cluster properties. Various X-ra…