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dc.contributor.authorSijacki, Debora
dc.contributor.authorGenel, Shy
dc.contributor.authorSpringel, Volker
dc.contributor.authorSnyder, Gregory F.
dc.contributor.authorNelson, Dylan
dc.contributor.authorHernquist, Lars
dc.contributor.authorVogelsberger, Mark
dc.contributor.authorTorrey, Paul A.
dc.date.accessioned2017-04-28T18:12:44Z
dc.date.available2017-04-28T18:12:44Z
dc.date.issued2015-07
dc.date.submitted2015-06
dc.identifier.issn0035-8711
dc.identifier.issn1365-2966
dc.identifier.urihttp://hdl.handle.net/1721.1/108501
dc.description.abstractWe study the properties of black holes and their host galaxies across cosmic time in the Illustris simulation. Illustris is a large-scale cosmological hydrodynamical simulation which resolves a (106.5 Mpc)³ volume with more than 12 billion resolution elements and includes state-of-the-art physical models relevant for galaxy formation. We find that the black hole mass density for redshifts z = 0–5 and the black hole mass function at z = 0 predicted by Illustris are in very good agreement with the most recent observational constraints. We show that the bolometric and hard X-ray luminosity functions of active galactic nuclei (AGN) at z = 0 and 1 reproduce observational data very well over the full dynamic range probed. Unless the bolometric corrections are largely underestimated, this requires radiative efficiencies to be on average low, ϵr ≲ 0.1, noting however that in our model radiative efficiencies are degenerate with black hole feedback efficiencies. Cosmic downsizing of the AGN population is in broad agreement with the findings from X-ray surveys, but we predict a larger number density of faint AGN at high redshifts than currently inferred. We also study black hole–host galaxy scaling relations as a function of galaxy morphology, colour and specific star formation rate. We find that black holes and galaxies co-evolve at the massive end, but for low mass, blue and star-forming galaxies there is no tight relation with either their central black hole masses or the nuclear AGN activity.en_US
dc.language.isoen_US
dc.publisherOxford University Pressen_US
dc.relation.isversionofhttp://dx.doi.org/10.1093/mnras/stv1340en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourcearXiven_US
dc.titleThe Illustris simulation: the evolving population of black holes across cosmic timeen_US
dc.typeArticleen_US
dc.identifier.citationSijacki, Debora; Vogelsberger, Mark; Genel, Shy; Springel, Volker; Torrey, Paul; Snyder, Gregory F.; Nelson, Dylan and Hernquist, Lars. “The Illustris Simulation: The Evolving Population of Black Holes Across Cosmic Time.” Monthly Notices of the Royal Astronomical Society 452, no. 1 (July 6, 2015): 575–596.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.departmentMIT Kavli Institute for Astrophysics and Space Researchen_US
dc.contributor.mitauthorVogelsberger, Mark
dc.contributor.mitauthorTorrey, Paul A.
dc.relation.journalMonthly Notices of the Royal Astronomical Societyen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsSijacki, Debora; Vogelsberger, Mark; Genel, Shy; Springel, Volker; Torrey, Paul; Snyder, Gregory F.; Nelson, Dylan; Hernquist, Larsen_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0001-8593-7692
dc.identifier.orcidhttps://orcid.org/0000-0002-5653-0786
mit.licenseOPEN_ACCESS_POLICYen_US
mit.metadata.statusComplete


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