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dc.contributor.authorEnglish, W.
dc.contributor.authorHardcastle, M. J.
dc.contributor.authorKrause, M. G. H.
dc.date.accessioned2019-11-28T01:10:38Z
dc.date.available2019-11-28T01:10:38Z
dc.date.issued2019-12-01
dc.identifier.citationEnglish , W , Hardcastle , M J & Krause , M G H 2019 , ' Numerical modelling of the lobes of radio galaxies in cluster environments -- IV. Remnant radio galaxies ' , Monthly Notices of the Royal Astronomical Society , vol. 490 , no. 4 , pp. 5807–5819 . https://doi.org/10.1093/mnras/stz2978
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 17595263
dc.identifier.otherPURE UUID: cd964cb2-cb63-49ee-95da-edce10dfe2a9
dc.identifier.otherArXiv: http://arxiv.org/abs/1910.08928v1
dc.identifier.otherORCID: /0000-0002-9610-5629/work/65312420
dc.identifier.otherScopus: 85079522257
dc.identifier.urihttp://hdl.handle.net/2299/21942
dc.description© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society.
dc.description.abstractWe examine the remnant phase of radio galaxies using three-dimensional hydrodynamical simulations of relativistic jets propagating through cluster environments. By switching the jets off once the lobes have reached a certain length we can study how the energy distribution between the lobes and shocked intra-cluster medium compares to that of an active source, as well as calculate synchrotron emission properties of the remnant sources. We see that as a result of disturbed cluster gas beginning to settle back into the initial cluster potential, streams of dense gas are pushed along the jet axis behind the remnant lobes, causing them to rise out of the cluster faster than they would due to buoyancy. This leads to increased adiabatic losses and a rapid dimming. The rapid decay of total flux density and surface brightness may explain the small number of remnant sources found in samples with a high flux density limit and may cause analytic models to overestimate the remnant fraction expected in sensitive surveys such as those now being carried out with LOFAR.en
dc.format.extent13
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectastro-ph.HE
dc.titleNumerical modelling of the lobes of radio galaxies in cluster environments -- IV. Remnant radio galaxiesen
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnras/stz2978
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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