The VISTA Deep Extragalactic Observations (VIDEO) survey
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Date
2013
Journal Title
Journal ISSN
Volume Title
Publisher
Oxford University Press
Abstract
In this paper we describe the first data release of the the Visible and Infrared Survey Telescope
for Astronomy (VISTA) Deep Extragalactic Observations (VIDEO) survey. VIDEO is a
12 degree2 survey in the near-infrared Z,Y ,J,H andKs bands, specifically designed to enable
the evolution of galaxies and large structures to be traced as a function of both epoch and
environment from the present day out to z=4, and active galactic nuclei (AGN) and the most
massive galaxies up to and into the epoch of reionization. With its depth and area, VIDEO
will be 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.
We provide data over the VIDEO-XMM3 tile, which also covers the Canada-France-
Hawaii-Telescope Legacy Survey Deep-1 field (CFHTLS-D1). The released VIDEO data
reach a 5 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). The data are compared to previous surveys over this field and
we find good astrometric agreement with the Two-Micron All Sky Survey, and source counts
in agreement with the recently released UltraVISTA survey data. The addition of the VIDEO
data to the CFHTLS-D1 optical data increases the accuracy of photometric redshifts and significantly
reduces the fraction of catastrophic outliers over the redshift range 0 < z < 1 from
5.8 to 3.1 per cent in the absence of an iband luminosity prior. However, we expect the main
improvement in photometric redshifts will come in the redshift range 1 < z < 4 due to the
sensitivity to the Balmer and 4000°A breaks provided by the near-infrared VISTA filters. All
images and catalogues presented in this paper are publicly available through ESO’s phase 3
archive and the VISTA Science Archive.
Description
Keywords
Observations, Astronomical data bases, Surveys, Cosmology, Large-scale structure of Universe, High redshift
Citation
Jarvis, M. J. et al. (2013). The VISTA Deep Extragalactic Observations (VIDEO) survey. Monthly Notices of the Royal Astronomical Society, 428 (2): 1281-1295