Supermassive black holes are growing slowly by z∼5
| dc.contributor.author | Lai, Samuel | en |
| dc.contributor.author | Onken, Christopher A. | en |
| dc.contributor.author | Wolf, Christian | en |
| dc.contributor.author | Bian, Fuyan | en |
| dc.contributor.author | Fan, Xiaohui | en |
| dc.date.accessioned | 2025-12-16T06:40:33Z | |
| dc.date.available | 2025-12-16T06:40:33Z | |
| dc.date.issued | 2024-05-20 | en |
| dc.description.abstract | We investigate the black hole mass function at z ∼5 using XQz5, our recent sample of the most luminous quasars between the redshifts 4.5 < z < 5.3. We include 72 quasars with black hole masses estimated from velocity-broadened emission-line measurements and single-epoch virial prescriptions in the footprint of a highly complete parent survey. The sample mean Eddington ratio and standard deviation is log λ ≈ -0.20 ± 0.24. The completeness-corrected mass function is modelled as a double power law, and we constrain its evolution across redshift assuming accretion-dominated mass growth. | en |
| dc.description.sponsorship | The Pan-STARRS1 Surveys (PS1) and the PS1 public science archive have been made possible through contributions by the Institute for Astronomy, the University of Hawaii, the Pan-STARRS Project Office, the Max-Planck Society and its participating institutes, the Max Planck Institute for Astronomy, Heidelberg and the Max Planck Institute for Extraterrestrial Physics, Garching, The Johns Hopkins University, Durham University, the University of Edinburgh, the Queen\u2019s University Belfast, the Harvard-Smithsonian Center for Astrophysics, the Las Cumbres Observatory Global Telescope Network Incorporated, the National Central University of Taiwan, the Space Telescope Science Institute, the National Aeronautics and Space Administration under grant no. NNX08AR22G issued through the Planetary Science Division of the NASA Science Mission Directorate, the National Science Foundation grant no. AST-1238877, the University of Maryland, Eotvos Lorand University (ELTE), the Los Alamos National Laboratory, and the Gordon and Betty Moore Foundation. The national facility capability for SkyMapper has been funded through ARC LIEF grant LE130100104 from the Australian Research Council, awarded to the University of Sydney, the Australian National University, Swinburne University of Technology, the University of Queensland, the University of Western Australia, the University of Melbourne, Curtin University of Technology, Monash University and the Australian Astronomical Observatory. SkyMapper is owned and operated by The Australian National University\u2019s Research School of Astronomy and Astrophysics. The survey data were processed and provided by the SkyMapper Team at ANU. The SkyMapper node of the All-Sky Virtual Observatory (ASVO) is hosted at the National Computational Infrastructure (NCI). Development and support of the SkyMapper node of the ASVO has been funded in part by Astronomy Australia Limited (AAL) and the Australian Government through the Commonwealth\u2019s Education Investment Fund (EIF) and National Collaborative Research Infrastructure Strategy (NCRIS), particularly the National eResearch Collaboration Tools and Resources (NeCTAR) and the Australian National Data Service Projects (ANDS). CAO was supported by the Australian Research Council (ARC) through Discovery Project DP190100252. | en |
| dc.description.status | Peer-reviewed | en |
| dc.format.extent | 17 | en |
| dc.identifier.issn | 0035-8711 | en |
| dc.identifier.other | ORCID:/0000-0002-4569-016X/work/189582930 | en |
| dc.identifier.scopus | 85194963873 | en |
| dc.identifier.uri | https://hdl.handle.net/1885/733795427 | |
| dc.language.iso | en | en |
| dc.rights | Publisher Copyright: ©λ)U(1 - ϵ )/ϵ = 1.79 ± 0.06, where | en |
| dc.source | Monthly Notices of the Royal Astronomical Society | en |
| dc.subject | galaxies: active | en |
| dc.subject | galaxies: high-redshift | en |
| dc.subject | quasars: emission lines | en |
| dc.subject | quasars: supermassive black holes | en |
| dc.title | Supermassive black holes are growing slowly by z∼5 | en |
| dc.type | Journal article | en |
| dspace.entity.type | Publication | en |
| local.bibliographicCitation.lastpage | 2261 | en |
| local.bibliographicCitation.startpage | 2245 | en |
| local.contributor.affiliation | Lai, Samuel; The Australian National University | en |
| local.contributor.affiliation | Onken, Christopher A.; Australian National University | en |
| local.contributor.affiliation | Wolf, Christian; The Australian National University | en |
| local.contributor.affiliation | Bian, Fuyan; European Southern Observatory | en |
| local.contributor.affiliation | Fan, Xiaohui; University of Arizona | en |
| local.identifier.citationvolume | 531 | en |
| local.identifier.doi | 10.1093/mnras/stae1301 | en |
| local.identifier.pure | a2876bd5-e186-4798-a608-5252eaec342c | en |
| local.identifier.url | https://www.scopus.com/pages/publications/85194963873 | en |
| local.type.status | Published | en |