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dc.contributor.authorDevereux, C.
dc.contributor.authorGeach, J. E.
dc.contributor.authorHardcastle, M. J.
dc.date.accessioned2019-03-14T15:38:54Z
dc.date.available2019-03-14T15:38:54Z
dc.date.issued2019-02-26
dc.identifier.citationDevereux , C , Geach , J E & Hardcastle , M J 2019 , ' The linear bias of radio galaxies at z~0.3 via cosmic microwave background lensing ' , Monthly Notices of the Royal Astronomical Society: Letters , vol. 485 , no. 1 , pp. L1-L5 . https://doi.org/10.1093/mnrasl/slz024
dc.identifier.issn1745-3925
dc.identifier.otherArXiv: http://arxiv.org/abs/1902.06581v1
dc.identifier.otherORCID: /0000-0003-4407-8443/work/62750957
dc.identifier.otherORCID: /0000-0003-4223-1117/work/62749649
dc.identifier.urihttp://hdl.handle.net/2299/21193
dc.description© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society
dc.description.abstractWe present a new measurement of the linear bias of radio loud active galactic nuclei (RLAGN) at $z\approx0.3$ and $L_{\rm 1.4GHz}>10^{23}\,{\rm W\,Hz^{-1}}$ selected from the Best & Heckman (2012) sample, made by cross-correlating the RLAGN surface density with a map of the convergence of the weak lensing field of the cosmic microwave background from Planck. We detect the cross-power signal at a significance of $3\sigma$ and use the amplitude of the cross-power spectrum to estimate the linear bias of RLAGN, $b=2.5 \pm 0.8$, corresponding to a typical dark matter halo mass of $\log_{10}(M_{\rm h} /h^{-1} M_\odot)=14.0^{+0.3}_{-0.5}$. When RLAGN associated with optically-selected clusters are removed we measure a lower bias corresponding to $\log_{10}(M_{\rm h} /h^{-1} M_\odot)=13.7^{+0.4}_{-1.0}$. These observations support the view that powerful RLAGN typically inhabit rich group and cluster environments.en
dc.format.extent5
dc.format.extent1012905
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society: Letters
dc.subjectastro-ph.GA
dc.subjectastro-ph.CO
dc.subjectlarge-scale structure of Universe
dc.subjectgalaxies:active
dc.subjectgalaxies:haloes
dc.subjectgravitational lensing:weak
dc.subjectAstronomy and Astrophysics
dc.subjectSpace and Planetary Science
dc.titleThe linear bias of radio galaxies at z~0.3 via cosmic microwave background lensingen
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre of Data Innovation Research
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85062558845&partnerID=8YFLogxK
rioxxterms.versionofrecord10.1093/mnrasl/slz024
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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