University of Hertfordshire

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Observability of intermittent radio sources in galaxy groups and clusters

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Observability of intermittent radio sources in galaxy groups and clusters. / Yates, Patrick; Shabala, Stanislav; Krause, Martin.

In: Monthly Notices of the Royal Astronomical Society, Vol. 480, No. 4, 11.11.2018, p. 5286–5306.

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@article{88515c889ba44a4f90aae3aef94a924a,
title = "Observability of intermittent radio sources in galaxy groups and clusters",
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. ",
keywords = "Galaxies: active, Galaxies: jets, Hydrodynamics, Radio continuum: galaxies",
author = "Patrick Yates and Stanislav Shabala and Martin Krause",
note = "22 pages, 24 figures. This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society {\textcopyright} 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. ",
year = "2018",
month = nov,
day = "11",
doi = "10.1093/mnras/sty2191",
language = "English",
volume = "480",
pages = "5286–5306",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",

}

RIS

TY - JOUR

T1 - Observability of intermittent radio sources in galaxy groups and clusters

AU - Yates, Patrick

AU - Shabala, Stanislav

AU - Krause, Martin

N1 - 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.

PY - 2018/11/11

Y1 - 2018/11/11

N2 - 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.

AB - 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.

KW - Galaxies: active

KW - Galaxies: jets

KW - Hydrodynamics

KW - Radio continuum: galaxies

UR - http://www.scopus.com/inward/record.url?scp=85054884598&partnerID=8YFLogxK

U2 - 10.1093/mnras/sty2191

DO - 10.1093/mnras/sty2191

M3 - Article

VL - 480

SP - 5286

EP - 5306

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -