KiDS-1000 catalogue: Redshift distributions and their calibration

  title={KiDS-1000 catalogue: Redshift distributions and their calibration},
  author={Hendrik Hildebrandt and Jan Luca van den Busch and Angus H. Wright and Chris Blake and Benjamin Joachimi and K. H. Kuijken and Tilman Troster and Marika Asgari and Maciej Bilicki and Jelte T.A. de Jong and Andrej Dvornik and Thomas Erben and Fedor I. Getman and Benjamin Giblin and Catherine Heymans and Arun Kannawadi and C.-A. Lin and Huanyuan Shan},
  journal={Astronomy and Astrophysics},
We present redshift distribution estimates of galaxies selected from the fourth data release of the Kilo-Degree Survey over an area of $\sim1000$ deg$^2$ (KiDS-1000). These redshift distributions represent one of the crucial ingredients for weak gravitational lensing measurements with the KiDS-1000 data. 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… Expand

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