Active galactic nuclei and their large-scale structure: an eROSITA mock catalogue. Issue 2 (20th May 2019)
- Record Type:
- Journal Article
- Title:
- Active galactic nuclei and their large-scale structure: an eROSITA mock catalogue. Issue 2 (20th May 2019)
- Main Title:
- Active galactic nuclei and their large-scale structure: an eROSITA mock catalogue
- Authors:
- 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 - Abstract:
- 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$\pm 5{{\ \rm per\ cent}}$ and the logN-logS to within$\pm 20{{\ \rm per\ cent}}$ . 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 × 10 6 (4 × 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 3Abstract: 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$\pm 5{{\ \rm per\ cent}}$ and the logN-logS to within$\pm 20{{\ \rm per\ cent}}$ . 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 × 10 6 (4 × 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 α 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. … (more)
- Is Part Of:
- Monthly notices of the Royal Astronomical Society. Volume 487:Issue 2(2019)
- Journal:
- Monthly notices of the Royal Astronomical Society
- Issue:
- Volume 487:Issue 2(2019)
- Issue Display:
- Volume 487, Issue 2 (2019)
- Year:
- 2019
- Volume:
- 487
- Issue:
- 2
- Issue Sort Value:
- 2019-0487-0002-0000
- Page Start:
- 2005
- Page End:
- 2029
- Publication Date:
- 2019-05-20
- Subjects:
- galaxies: active -- large-scale structure of Universe -- cosmology: observations
Astronomy -- Periodicals
Periodicals
520.5 - Journal URLs:
- http://mnras.oxfordjournals.org/ ↗
http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-2966 ↗
http://www.blackwell-synergy.com/issuelist.asp?journal=mnr ↗
http://www.blackwell-synergy.com/loi/mnr ↗
http://ukcatalogue.oup.com/ ↗ - DOI:
- 10.1093/mnras/stz1390 ↗
- Languages:
- English
- ISSNs:
- 0035-8711
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 5943.000000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 11797.xml