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The UKIRT Infrared Deep Sky Survey ZY JHK photometric system: passbands and synthetic colours

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Hewett, P. C., Warren, S. J., Leggett, S. K., Hodgkin, S. T.·2006·Monthly Notices of the Royal Astronomical Society

Abstract

The United Kingdom Infrared Telescope (UKIRT) Infrared Deep Sky Survey is a set of five surveys of complementary combinations of area, depth and Galactic latitude, which began in 2005 May. The surveys use the UKIRT Wide Field Camera (WFCAM), which has a solid angle of 0.21 deg2. Here, we introduce and characterize the ZY JHK photometric system of the camera, which covers the wavelength range 0.83-2.37 μm. We synthesize response functions for the five passbands, and compute colours in the WFCAM, Sloan Digital Sky Survey (SDSS) and two-Micron All Sky Survey (2MASS) bands, for brown dwarfs, stars, galaxies and quasars of different types. We provide a recipe for others to compute colours from their own spectra. Calculations are presented in the Vega system, and the computed offsets to the AB system are provided, as well as colour equations between WFCAM filters and the SDSS and 2MASS passbands. We highlight the opportunities presented by the new Y filter at 0.97-1.07 μm for surveys for hypothetical Y dwarfs (brown dwarfs cooler than T), and for quasars of very high redshift, z > 6.4.

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Cites

  • The Sloan Digital Sky Survey Photometric System

    Fukugita, M., Ichikawa, T., Gunn, J. E., Doi, M., Shimasaku, K., & Schneider, D. P. (1996) · The Astronomical Journal · doi:10.1086/117915 · Cited by 3,033 · cited 2×

    “In Table 7 we list the filters and provide in col. 2 the computed effective wavelength, defined according to Schneider, Gunn & Hoessel (1983) (see equation 3 in Fukugita et al. 1996).”
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Metadata

Authors
Hewett, P. C., Warren, S. J., Leggett, S. K., & Hodgkin, S. T.
Venue
Monthly Notices of the Royal Astronomical Society
Published
2006-04-01
Volume
367
Issue
2
Pages
454-468
ISSN
  • 0035-8711 (ISSN-L)
  • 1365-2966
OpenAlex
W2099812916
Cited by
775
References
1
FWCI
43.36
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: The UKIRT Infrared Deep Sky Survey ZY JHK photometric system: passbands and synthetic colours. https://app.cochat.ai/papers/10.1111/j.1365-2966.2005.09969.x
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Hewett, P. C., Warren, S. J., Leggett, S. K., & Hodgkin, S. T. (2006). The UKIRT Infrared Deep Sky Survey ZY JHK photometric system: passbands and synthetic colours. Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1111/j.1365-2966.2005.09969.x

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