![]() ![]() The primary estimate is based on deep spectroscopic reference catalogues that are re-weighted with the help of a self-organising map (SOM) to closely resemble the KiDS-1000 sources, split into five tomographic redshift bins in the photometric redshift range 0.1 < z B ≤ 1.2. These redshift distributions represent one of the crucial ingredients for weak gravitational lensing measurements with the KiDS-1000 data. ![]() We present redshift distribution estimates of galaxies selected from the fourth data release of the Kilo-Degree Survey over an area of ∼1000 deg 2 (KiDS-1000). ![]() University of Chinese Academy of Sciences, Beijing 100049, PR China Shanghai Astronomical Observatory (SHAO), Nandan Road 80, Shanghai 200030, PR China INAF – Astronomical Observatory of Capodimonte, Via Moiariello 16, 80131 Napoli, Italyĭepartment of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USA Kapteyn Astronomical Institute, University of Groningen, 9700 AD Groningen, The Netherlands Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UKĬenter for Theoretical Physics, Polish Academy of Sciences, Al. Leiden Observatory, Leiden University, Niels BohrCA Leiden, The Netherlands Ruhr University Bochum, Faculty of Physics and Astronomy, Astronomical Institute (AIRUB), German Centre for Cosmological Lensing, 44780 Bochum, GermanyĮ-mail: für Astronomie, Universität Bonn, Auf dem Hügel 71, 53121 Bonn, GermanyĬentre for Astrophysics & Supercomputing, Swinburne University of Technology, PO Box 218, Hawthorn, VIC 3122, Australiaĭepartment of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
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