University of Hertfordshire

From the same journal

From the same journal

By the same authors

Observability of intermittent radio sources in galaxy groups and clusters

Research output: Contribution to journalArticlepeer-review

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    Accepted author manuscript, 5.45 MB, PDF document

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Original languageEnglish
Pages (from-to)5286–5306
Number of pages21
JournalMonthly Notices of the Royal Astronomical Society
Volume480
Issue4
Early online date9 Aug 2018
DOIs
Publication statusPublished - 11 Nov 2018

Abstract

We have carried out numerical hydrodynamic simulations of radio jets from active galactic nuclei using the PLUTO simulation code, with the aim of investigating the effect of different environments and intermittency of energy injection on the resulting dynamics and observable properties of the jet-inflated lobes. Initially conical jets are simulated in poor group and cluster environments. We show that the environment into which a radio jet is propagating plays a large role in the resulting morphology, dynamics and observable properties of the radio source. The same jet collimates much later in a poor group compared to a cluster, which leads to pronounced differences in radio morphology. The intermittency of the jet also affects the observable properties of the radio source, and multiple hotspots are present for multiple outburst jets in the cluster environment. We quantify the detectability of active and quiescent phases, and find this to be strongly environment-dependent. We conclude that the dynamics and observational properties of jets depend strongly on the details of energy injection and environment.

Notes

22 pages, 24 figures. This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

ID: 15169477