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dc.contributor.authorBrownson, Simchaen
dc.contributor.authorMaiolino, Robertoen
dc.contributor.authorTazzari, Marcoen
dc.contributor.authorCarniani, Stefanoen
dc.contributor.authorHenden, Nicholasen
dc.date.accessioned2019-10-09T23:30:17Z
dc.date.available2019-10-09T23:30:17Z
dc.date.issued2019-12-01en
dc.identifier.issn0035-8711
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/297669
dc.description.abstractThe Sunyaev-Zel'dovich (SZ) effect can potentially be used to investigate the heating of the circumgalactic medium and subsequent suppression of cold gas accretion onto the host galaxy caused by quasar feedback. We use a deep ALMA observation of HE0515-4414 in band 4, the most luminous quasar known at the peak of cosmic star formation (z=1.7), to search for the SZ signal tracing the heating of the galaxy's halo. ALMA's sensitivity to a broad range of spatial scales enables us to disentangle emitting compact sources from the negative, extended SZ signal. We obtain a marginal S-Z detection (~3.3σ) on scales of about 300 kpc (30-40 arcsec), at the 0.2 mJy level, 0.5 mJy after applying a correction factor for primary beam attenuation and flux that is resolved out by the array. We show that our result is consistent with a simulated ALMA observation of a similar quasar in the FABLE cosmological simulations. We emphasise that detecting an SZ signal is more easily achieved in the visibility plane than in the (inferred) images. We also confirm a marginal detection (3.2σ) of a potential SZ dip on smaller scales (<100 kpc) already claimed by other authors, possibly highlighting the complex structure of the halo heating. Finally, we use SZ maps from the FABLE cosmological simulations, convolved with ALMA simulations, to illustrate that band 3 observations are much more effective in detecting the SZ signal with higher significance, and discuss the optimal observing strategy.
dc.description.sponsorshipRM and SC acknowledge ERC Advanced Grant 695671 "QUENCH". SB, RM and SC acknowledge support by the Science and Technology Facilities Council (STFC). M.T. has been supported by the DISCSIM project, grant agreement 341137 funded by the European Research Council under ERC-2013-ADG and by the UK Science and Technology research Council (STFC).
dc.publisherOxford University Press
dc.rightsAll rights reserved
dc.rights.uri
dc.titleDetecting the halo heating from AGN feedback with ALMAen
dc.typeArticle
prism.endingPage5146
prism.issueIdentifier4en
prism.publicationDate2019en
prism.publicationNameMonthly Notices of the Royal Astronomical Societyen
prism.startingPage5134
prism.volume490en
dc.identifier.doi10.17863/CAM.44723
dc.identifier.doi10.17863/CAM.44723
dcterms.dateAccepted2019-10-08en
rioxxterms.versionofrecord10.1093/mnras/stz2945en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2019-12-01en
dc.contributor.orcidMaiolino, Roberto [0000-0002-4985-3819]
dc.contributor.orcidTazzari, Marco [0000-0003-3590-5814]
dc.contributor.orcidCarniani, Stefano [0000-0002-6719-380X]
dc.contributor.orcidHenden, Nicholas [0000-0003-2002-7983]
dc.identifier.eissn1365-2966
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idSTFC (ST/M001172/1)
pubs.funder-project-idECH2020 EUROPEAN RESEARCH COUNCIL (ERC) (695671)
pubs.funder-project-idFoundation MERAC (Mobilising European Research in Astrophysics and Cosmology) (Unknown)
pubs.funder-project-idEuropean Research Council (341137)
pubs.funder-project-idSTFC (ST/S505316/1)
pubs.funder-project-idSTFC (1948643)


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