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dc.contributor.authorNyland, K.
dc.contributor.authorYoung, L.~M.
dc.contributor.authorWrobel, J.~M.
dc.contributor.authorSarzi, M.
dc.contributor.authorMorganti, R.
dc.contributor.authorAlatalo, K.
dc.contributor.authorBlitz, L.
dc.contributor.authorBournaud, F.
dc.contributor.authorBureau, M.
dc.contributor.authorCappellari, M.
dc.contributor.authorCrocker, A.~F.
dc.contributor.authorDavies, R.~L.
dc.contributor.authorDavis, Timothy
dc.contributor.authorde Zeeuw, P.~T.
dc.contributor.authorDuc, P.-A.
dc.contributor.authorEmsellem, E.
dc.contributor.authorKhochfar, S.
dc.contributor.authorKrajnovi, D.
dc.contributor.authorKuntschner, H.
dc.contributor.authorMcDermid, R.~M.
dc.contributor.authorNaab, T.
dc.contributor.authorOosterloo, T.
dc.contributor.authorScott, N.
dc.contributor.authorSerra, P.
dc.contributor.authorWeijmans, A.-M.
dc.date.accessioned2017-06-26T15:24:43Z
dc.date.available2017-06-26T15:24:43Z
dc.date.issued2016-05-11
dc.identifier.citationNyland , K , Young , L M , Wrobel , J M , Sarzi , M , Morganti , R , Alatalo , K , Blitz , L , Bournaud , F , Bureau , M , Cappellari , M , Crocker , A F , Davies , R L , Davis , T , de Zeeuw , P T , Duc , P-A , Emsellem , E , Khochfar , S , Krajnovi , D , Kuntschner , H , McDermid , R M , Naab , T , Oosterloo , T , Scott , N , Serra , P & Weijmans , A-M 2016 , ' The ATLAS 3D Project - XXXI. Nuclear radio emission in nearby early-type galaxies ' , Monthly Notices of the Royal Astronomical Society , vol. 458 , no. 2 , pp. 2221-2268 . https://doi.org/10.1093/mnras/stw391
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 10778422
dc.identifier.otherPURE UUID: 93614384-a35c-484f-b9d7-c3e7ea9edc2b
dc.identifier.otherBibtex: urn:4ac1055797750772cfed5fa04500b021
dc.identifier.otherScopus: 84963811362
dc.identifier.urihttp://hdl.handle.net/2299/18542
dc.descriptionThis article has been accepted for publication in Monthly Notices of The Royal Astronomical Society, © The Authors 2016. Published by Oxford University Press on behalf of The Royal Astronomical Society.
dc.description.abstractWe present the results of a high-resolution, 5 GHz, Karl G. Jansky Very Large Array study of the nuclear radio emission in a representative subset of the ATLAS3D survey of early-type galaxies (ETGs). We find that 51 ± 4 per cent of the ETGs in our sample contain nuclear radio emission with luminosities as low as 1018 W Hz−1. Most of the nuclear radio sources have compact (≲25–110 pc) morphologies, although ∼10 per cent display multicomponent core+jet or extended jet/lobe structures. Based on the radio continuum properties, as well as optical emission line diagnostics and the nuclear X-ray properties, we conclude that the majority of the central 5 GHz sources detected in the ATLAS3D galaxies are associated with the presence of an active galactic nucleus (AGN). However, even at subarcsecond spatial resolution, the nuclear radio emission in some cases appears to arise from low-level nuclear star formation rather than an AGN, particularly when molecular gas and a young central stellar population is present. This is in contrast to popular assumptions in the literature that the presence of a compact, unresolved, nuclear radio continuum source universally signifies the presence of an AGN. Additionally, we examine the relationships between the 5 GHz luminosity and various galaxy properties including the molecular gas mass and – for the first time – the global kinematic state. We discuss implications for the growth, triggering, and fuelling of radio AGNs, as well as AGN-driven feedback in the continued evolution of nearby ETGs.en
dc.format.extent48
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectgalaxies: active, galaxies: nuclei, radio continuum: galaxies
dc.titleThe ATLAS 3D Project - XXXI. Nuclear radio emission in nearby early-type galaxiesen
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnras/stw391
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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