dc.contributor.author | Wang, L. | |
dc.contributor.author | Gao, F. | |
dc.contributor.author | Best, P. N. | |
dc.contributor.author | Duncan, K. | |
dc.contributor.author | Hardcastle, M. J. | |
dc.contributor.author | Kondapally, R. | |
dc.contributor.author | Malek, K. | |
dc.contributor.author | McCheyne, I. | |
dc.contributor.author | Sabater, J. | |
dc.contributor.author | Shimwell, T. | |
dc.contributor.author | Tasse, C. | |
dc.contributor.author | Bonato, M. | |
dc.contributor.author | Bondi, M. | |
dc.contributor.author | Cochrane, R. K. | |
dc.contributor.author | Farrah, D. | |
dc.contributor.author | Gurkan, G. | |
dc.contributor.author | Haskell, P. | |
dc.contributor.author | Pearson, W. J. | |
dc.contributor.author | Prandoni, I. | |
dc.contributor.author | Rottgering, H. J. A. | |
dc.contributor.author | Smith, D. J. B. | |
dc.contributor.author | Vaccari, M. | |
dc.contributor.author | Williams, W. L. | |
dc.date.accessioned | 2021-05-05T16:00:22Z | |
dc.date.available | 2021-05-05T16:00:22Z | |
dc.date.issued | 2021-04-07 | |
dc.identifier.citation | Wang , L , Gao , F , Best , P N , Duncan , K , Hardcastle , M J , Kondapally , R , Malek , K , McCheyne , I , Sabater , J , Shimwell , T , Tasse , C , Bonato , M , Bondi , M , Cochrane , R K , Farrah , D , Gurkan , G , Haskell , P , Pearson , W J , Prandoni , I , Rottgering , H J A , Smith , D J B , Vaccari , M & Williams , W L 2021 , ' The bright end of the infrared luminosity functions and the abundance of hyperluminous infrared galaxies ' , Astronomy & Astrophysics , vol. 648 , A8 . https://doi.org/10.1051/0004-6361/202038811 | |
dc.identifier.issn | 0004-6361 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/2011.08798v1 | |
dc.identifier.other | ORCID: /0000-0001-9708-253X/work/93471034 | |
dc.identifier.other | ORCID: /0000-0001-7315-1596/work/93471177 | |
dc.identifier.other | ORCID: /0000-0003-4223-1117/work/93471052 | |
dc.identifier.uri | http://hdl.handle.net/2299/24400 | |
dc.description | 16 pages, 11 figures, accepted for publication in A&A as part of the LOFAR Deep Fields Paper Splash. © 2020 The European Southern Observatory (ESO) | |
dc.description.abstract | We provide the most accurate estimate yet of the bright end of the infrared (IR) luminosity functions (LFs) and the abundance of hyperluminous IR galaxies (HLIRGs) with IR luminosities > 10^13 L_solar, thanks to the combination of the high sensitivity, angular resolution, and large area of the LOFAR Deep Fields, which probes an unprecedented dynamic range of luminosity and volume. We cross-match Herschel sources and LOFAR sources in Bootes (8.63 deg^2), Lockman Hole (10.28 deg^2), and ELAIS-N1 (6.74 deg^2) with rms sensitivities of around 32, 22, and 20 mJy per beam, respectively. We divide the matched samples into unique and multiple categories. For the multiple matches, we de-blend the Herschel fluxes using the LOFAR positions and the 150-MHz flux densities as priors. We perform spectral energy distribution (SED) fitting, combined with multi-wavelength counterpart identifications and photometric redshift estimates, to derive IR luminosities. The depth of the LOFAR data allows us to identify highly complete (around 92% completeness) samples of bright Herschel sources with a simple selection based on the 250 micron flux density (45, 40, and 35 mJy in Bootes, Lockman Hole, and ELAIS-N1, respectively). Most of the bright Herschel sources fall into the unique category (i.e. a single LOFAR counterpart). For the multiple matches, there is excellent correspondence between the radio emission and the far-IR emission. We find a good agreement in the IR LFs with a previous study out to z around 6 which used de-blended Herschel data. Our sample gives the strongest and cleanest indication to date that the population of HLIRGs has surface densities of around 5 to 18 / deg^2 (with variations due to a combination of the applied flux limit and cosmic variance) and an uncertainty of a factor of 2. In comparison, the GALFORM semi-analytic model significantly under-predicts the abundance of HLIRGs. | en |
dc.format.extent | 16 | |
dc.format.extent | 5623744 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astronomy & Astrophysics | |
dc.subject | astro-ph.GA | |
dc.title | The bright end of the infrared luminosity functions and the abundance of hyperluminous infrared galaxies | en |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | SPECS Deans Group | |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1051/0004-6361/202038811 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |