The fifth data release of the Kilo Degree Survey

Author(s): Angus H. Wright, Konrad Kuijken, Hendrik Hildebrandt, Mario Radovich, Maciej Bilicki, Andrej Dvornik, Fedor Getman, Catherine Heymans, Henk Hoekstra, Shun Sheng Li, Lance Miller, Nicola R. Napolitano, Qianli Xia, Marika Asgari, Massimo Brescia, Hugo Buddelmeijer, Pierre Burger, Gianluca Castignani, Stefano Cavuoti, Jelte De Jong, Alastair Edge, Benjamin Giblin, Carlo Giocoli, Joachim Harnois-Déraps, Priyanka Jalan, Benjamin Joachimi, Anjitha John William, Shahab Joudaki, Arun Kannawadi, Gursharanjit Kaur, Francesco La Barbera, Laila Linke, Constance Mahony, Matteo Maturi, Lauro Moscardini, Szymon J. Nakoneczny, Maurizio Paolillo, Lucas Porth, Emanuella Puddu, Robert Reischke, Peter Schneider, Mauro Sereno, Huanyuan Shan, Cristóbal Sifón, Benjamin Stölzner, Tilman Tröster, Edwin Valentijn, Jan Luca Van Den Busch, Gijs Verdoes Kleijn, Anna Wittje, Ziang Yan, Ji Yao, Mijin Yoon, Yun Hao Zhang
Abstract: We present the final data release of the Kilo-Degree Survey (KiDS-DR5), a public European Southern Observatory (ESO) wide-field imaging survey optimised for weak gravitational lensing studies. We combined matched-depth multi-wavelength observations from the VLT Survey Telescope and the VISTA Kilo-degree INfrared Galaxy (VIKING) survey to create a nine-band optical-to-near-infrared survey spanning 1347 deg². The median r-band 5σlimiting magnitude is 24.8 with median seeing 0.7″. The main survey footprint includes 4 deg² of overlap with existing deep spectroscopic surveys. We complemented these data in DR5 with a targeted campaign to secure an additional 23 deg² of KiDS- and VIKING-like imaging over a range of additional deep spectroscopic survey fields. From these fields, we extracted a catalogue of 126 085 sources with both spectroscopic and photometric redshift information, which enables the robust calibration of photometric redshifts across the full survey footprint. In comparison to previous releases, DR5 represents a 34% areal extension and includes an i-band re-observation of the full footprint, thereby increasing the effective i-band depth by 0.4 magnitudes and enabling multi-epoch science. Our processed nine-band imaging, single- and multi-band catalogues with masks, and homogenised photometry and photometric redshifts can be accessed through the ESO Archive Science Portal.
Organisation(s): Department of Astrophysics
External organisation(s): Ruhr-Universität Bochum (RUB), Leiden University, Osservatorio Astronomico, Polish Academy of Sciences (PAS), INAF Astronomical Observatory of Capodimonte , University of Edinburgh, University of Oxford, Sun Yat-sen University, University of Hull, Consorzio di Ricerca per l’Energia, l’Automazione e le Tecnologie dell’Elettromagnetismo, Rheinische Friedrich-Wilhelms-Universität Bonn, University of Bologna, INAF-Osservatorio Astrofisico di Torino, University of Groningen, Durham University, University of Barcelona, Instituto Nazionale die Astrofisica (INAF), Newcastle University, University College London, University of Waterloo (UW), Princeton University, Leopold-Franzens-Universität Innsbruck, Scientific Software Center, Istituto Nazionale di Fisica Nucleare (INFN), Roma, California Institute of Technology (Caltech), National Centre for Nuclear Research (NCBJ), Università degli studi di Napoli Federico II, Chinese Academy of Sciences (CAS), University of the Chinese Academy of Sciences, Pontificia Universidad Católica de Valparaíso, Eidgenössische Technische Hochschule Zürich
Journal: Astronomy and Astrophysics
Volume: 686
No. of pages: 54
ISSN: 0004-6361
DOI: https://doi.org/10.1051/0004-6361/202346730
Publication date: 06-2024
Peer reviewed: Yes
Austrian Fields of Science 2012: 103003 Astronomy, 103004 Astrophysics
Keywords
ASJC Scopus subject areas: Astronomy and Astrophysics, Space and Planetary Science
Portal url: https://ucrisportal.univie.ac.at/en/publications/8f595946-dbaf-4c93-90b2-fc889c6f6ac1

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