Gaia CRF3 cross-matches

This table contains the full cross-match information for the Gaia-CRF3 sources. The Gaia-CRF3 sources were selected from the cross-matches with 17 external QSO catalogues as detailed below (three of which are parts of ICRF3 described in the first paper). For each Gaia-CRF3 source the information in which external catalogue this source was found and which name(s) this source has in those external catalogues is provided. The table allows the user to get all sources from an external catalogue that are in Gaia-CRF3.The external catalogues from which the Gaia-CRF3 sources were compiled are: The third realization of the International Celestial Reference Frame by very long baseline interferometry (Charlot et al. 2020) A New Version of the OCARS Catalogue of Optical Characteristics of Astrometric Radio Sources (Malkin 2018) (the catalogue downloaded from http://www.gaoran.ru/english/as/ac_vlbi/#OCARS on 17 June 2020) Identification of 1.4 Million Active Galactic Nuclei in the Mid-Infrared using WISE Data (Secrest et al. 2015) The WISE AGN Catalogue (Assef et al. 2018) The Million Quasars (Milliquas) Catalogue, v6.4 (Flesch 2019) with the v6.5 (2020) update The Sloan Digital Sky Survey Quasar Catalogue: Fourteenth data release (Pâris et al. 2018) LQAC-5: The fifth release of the Large Quasar Astrometric Catalogue. A compilation of 592 809 objects with 398 697 Gaia counterparts (Souchay et al. 2019) The Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey: The Fourth and Fifth Data Releases (Yao et al. 2019) -- see also https://nadc.china-vo.org/data/article/20190107155838 The large quasar reference frame (LQRF). An optical representation of the ICRS (Andrei et al. 2009) The 2dF QSO Redshift Survey - XII. The spectroscopic catalogue and luminosity function (Croom et al. 2004) The 5th edition of the Roma-BZCAT (Massaro et al. 2015) 2WHSP: A multi-frequency selected catalogue of high energy and very high energy γ-ray blazars and blazar candidates (Chang et al. 2017) ALMA photometry of extragalactic radio sources (Bonato et al. 2019) Catalogues of active galactic nuclei from Gaia and unWISE data (Shu et al. 2019) Quasar and galaxy classification in Gaia Data Release 2 (Bailer-Jones et al. 2019)