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Lookup NU author(s): Dr Marika AsgariORCiD, Dr Joachim Harnois-DerapsORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© The Authors 2024.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.
Author(s): Wright AH, Kuijken K, Hildebrandt H, Radovich M, Bilicki M, Dvornik A, Getman F, Heymans C, Hoekstra H, Li S-S, Miller L, Napolitano NR, Xia Q, Asgari M, Brescia M, Buddelmeijer H, Burger P, Castignani G, Cavuoti S, De Jong J, Edge A, Giblin B, Giocoli C, Harnois-Deraps J, Jalan P, Joachimi B, John William A, Joudaki S, Kannawadi A, Kaur G, La Barbera F, Linke L, Mahony C, Maturi M, Moscardini L, Nakoneczny SJ, Paolillo M, Porth L, Puddu E, Reischke R, Schneider P, Sereno M, Shan H, Sifon C, Stolzner B, Troster T, Valentijn E, Van Den Busch JL, Verdoes Kleijn G, Wittje A, Yan Z, Yao J, Yoon M, Zhang Y-H
Publication type: Article
Publication status: Published
Journal: Astronomy and Astrophysics
Year: 2024
Volume: 686
Print publication date: 01/06/2024
Online publication date: 12/06/2024
Acceptance date: 27/11/2023
Date deposited: 01/07/2024
ISSN (print): 0004-6361
ISSN (electronic): 1432-0746
Publisher: EDP Sciences
URL: https://doi.org/10.1051/0004-6361/202346730
DOI: 10.1051/0004-6361/202346730
Data Access Statement: The public release of KiDS data has been made through the ESO archive. As with previous releases, the data products made available via the archive include optical imaging (include science, weight, flag, and sum images), single-band detection catalogues, and multi-band catalogues (including NIR information from VIKING). However, changes to the data that are available within the survey (specifically regarding the two i-band passes) require changes to the format of the data products that are stored at ESO. Columns that are contained within the multi-band catalogues are presented in Table I.1, as well as specific columns that have changed names and/or meanings (Table I.3).
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