III/334          VISTA Deep Extragalactic Observations (VIDEO)   (Jarvis+, 2013)
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Beginning of ReadMe : III/334 VISTA Deep Extragalactic Observations (VIDEO) (Jarvis+, 2013) ================================================================================ The VISTA Deep Extragalactic Observations (VIDEO) survey. Jarvis M.J., Bonfield D.G., Bruce V.A., Geach J.E., McAlpine K., McLure R.J., Gonzalez-Solares E., Irwin M., Lewis J., Kupcu Yoldas A., Andreon S., Cross N.J.G., Emerson J.P., Dalton G., Dunlop J.S., Hodgkin S.T., Le F.O., Karouzos M., Meisenheimer K., Oliver S., Rawlings S., Simpson C., Smail I., Smith D.J.B., Sullivan M., Sutherland W., White S.V., Zwart J.T.L. <Mon. Not. R. Astron. Soc. 428, 1281 (2013)> =2013MNRAS.428.1281J =2014yCat.3334....0J ================================================================================ ADC_Keywords: Surveys ; Infrared sources ; Photometry, infrared Keywords: astronomical data bases: miscellaneous - surveys - large-scale structure of Universe - galaxies: general - galaxies: high redshift Abstract: VIDEO is a  12 square degrees survey in the near-infrared Z, Y, J, H and Ks bands,over the ELAIS-S1, XMMLS, and ECDFS extragalactic fields. This document describes the catalog released for the deep stracked data in the VIDEO-XMM3 field, which also covers the Canada-France-Hawaii Telescope Legacy Survey Deep-1 field (CFHTLS-D1). Description: The released VIDEO data reach a 5sigma AB-magnitude depth of Z=25.7, Y=24.5, J=24.4, H=24.1 and Ks=23.8 in 2 arcsec diameter apertures (the full depth of Y=24.6 will be reached within the full integration time in future releases). To the 5sigma limit, the Ks catalog contains 198718 sources over 1.8 square degrees. The Ks-selected catalog provides band-merged photometry using the Ks-band as the detection image and extracting photometry from the shorter wavelength imaging data. The authors recommend using only those sources with Ks<23.5 for most studies as this gives a completeness of  90 per cent (Jarvis et al., 2013MNRAS.428.1281J). In the Ks-selected band-merged catalog, columns where the value is "NaN" denote that the object was detected at the position of the Ks-band source with negative flux, this occurs over all apertures and filters for different objects, but is mostly a problem for the larger aperture. The VIDEO survey was specifically designed to enable the evolution of galaxies and large structures to be traced as a function of both epoch and environment from the pre sent day out to z=4, and active galactic nuclei (AGNs) and the most massive galaxies up to and into the epoch of reionization. With its depth and area, VIDEO is able to fully explore the period in the Universe where AGN and starburst activity were at their peak and the first galaxy clusters were beginning to virialize. VIDEO therefore offers a unique data set with which to investigate the interplay between AGN, starbursts and environment, and the role of feedback at a time when it was potentially most crucial. Acknowledging VIDEO in publications: Please use the following statement in any publication using these data: "Based on data products from observations made with ESO telescopes at the Las Silla Paranal Observatory under programme ID 179.A-2006."

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