Active galactic nuclei and their large-scale structure : an eROSITA mock catalogue

Show simple item record Comparat, J. Merloni, A. Salvato, M. Nandra, K. Boller, T. Georgakakis, A. Finoguenov, A. Dwelly, T. Buchner, J. Del Moro, A. Clerc, N. Wang, Y. Zhao, G. Prada, F. Yepes, G. Brusa, M. Krumpe, M. Liu, T. 2019-12-17T12:11:03Z 2019-12-17T12:11:03Z 2019-08
dc.identifier.citation Comparat , J , Merloni , A , Salvato , M , Nandra , K , Boller , T , Georgakakis , A , Finoguenov , A , Dwelly , T , Buchner , J , Del Moro , A , Clerc , N , Wang , Y , Zhao , G , Prada , F , Yepes , G , Brusa , M , Krumpe , M & Liu , T 2019 , ' Active galactic nuclei and their large-scale structure : an eROSITA mock catalogue ' , Monthly Notices of the Royal Astronomical Society , vol. 487 , no. 2 , pp. 2005-2029 .
dc.identifier.other PURE: 126211167
dc.identifier.other PURE UUID: 2b0e509c-d315-476f-9fe9-a022416db762
dc.identifier.other WOS: 000474919700039
dc.description.abstract In the context of the upcoming SRG/eROSITA survey, we present an N-body simulation-based mock catalogue for X-ray-selected active galactic nucleus (AGN) samples. The model reproduces the observed hard X-ray AGN luminosity function (XLF) and the soft X-ray logN-logS from redshift 0 to 6. The XLF is reproduced to within +/- 5 per cent and the logN-logS to within +/- 20 per cent. We develop a joint X-ray - optical extinction and classification model. We adopt a set of empirical spectral energy distributions to predict observed magnitudes in the UV, optical, and NIR. With the latest eROSITA all sky survey sensitivity model, we create a high-fidelity full-sky mock catalogue of X-ray AGN. It predicts their distributions in right ascension, declination, redshift, and fluxes. Using empirical medium resolution optical spectral templates and an exposure time calculator, we find that 1.1 x 10(6) (4 x 10(5)) fibre-hours are needed to follow-up spectroscopically from the ground the detected X-ray AGN with an optical magnitude 21 <r <22.8 (22.8 <r <25) with a 4-m (8-m) class multiobject spectroscopic facility. We find that future clustering studies will measure the AGN bias to the per cent level at redshift z <1.2 and should discriminate possible scenarios of galaxy-AGN co-evolution. We predict the accuracy to which the baryon acoustic oscillation standard ruler will be measured using X-ray AGN: better than 3 per cent for AGN between redshift 0.5 to 3 and better than 1 per cent using the Ly alpha forest of X-ray QSOs discovered between redshift 2 and 3. eROSITA will provide an outstanding set of targets for future galaxy evolution and cosmological studies. en
dc.format.extent 25
dc.language.iso eng
dc.relation.ispartof Monthly Notices of the Royal Astronomical Society
dc.rights cc_by_nc_sa
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject galaxies: active
dc.subject large-scale structure of Universe
dc.subject cosmology: observations
dc.subject STELLAR MASS
dc.subject GALAXY
dc.subject AGN
dc.subject QUASARS
dc.subject LUMINOSITY
dc.subject 115 Astronomy, Space science
dc.title Active galactic nuclei and their large-scale structure : an eROSITA mock catalogue en
dc.type Article
dc.contributor.organization Department of Physics
dc.description.reviewstatus Peer reviewed
dc.relation.issn 0035-8711
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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