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

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dc.contributor.authorComparat, J.
dc.contributor.authorMerloni, A.
dc.contributor.authorSalvato, M.
dc.contributor.authorNandra, K.
dc.contributor.authorBoller, T.
dc.contributor.authorGeorgakakis, A.
dc.contributor.authorFinoguenov, A.
dc.contributor.authorDwelly, T.
dc.contributor.authorBuchner, J.
dc.contributor.authorDel Moro, A.
dc.contributor.authorClerc, N.
dc.contributor.authorWang, Y.
dc.contributor.authorZhao, G.
dc.contributor.authorPrada, F.
dc.contributor.authorYepes, G.
dc.contributor.authorBrusa, M.
dc.contributor.authorKrumpe, M.
dc.contributor.authorLiu, T.
dc.date.accessioned2025-01-23T21:11:55Z
dc.date.available2025-01-23T21:11:55Z
dc.date.issued2019
dc.description.abstractIn 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.
dc.fuente.origenWOS
dc.identifier.doi10.1093/mnras/stz1390
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stz1390
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100929
dc.identifier.wosidWOS:000474919700039
dc.issue.numero2
dc.language.isoen
dc.pagina.final2029
dc.pagina.inicio2005
dc.revistaMonthly notices of the royal astronomical society
dc.rightsacceso restringido
dc.subjectgalaxies: active
dc.subjectlarge-scale structure of Universe
dc.subjectcosmology: observations
dc.titleActive galactic nuclei and their large-scale structure: an eROSITA mock catalogue
dc.typeartículo
dc.volumen487
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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