J/MNRAS/365/439 JHK photometry for UKIRT faint galaxies (Christopher+, 2006)
A catalogue of potential adaptive optics survey fields from the UKIRT archive.
Christopher N.M., Smail I.
<Mon. Not. R. Astron. Soc., 365, 439-446 (2006)>
=2006MNRAS.365..439C 2006MNRAS.365..439C
ADC_Keywords: Galaxies, photometry ; Photometry, infrared
Keywords: galaxies: evolution - galaxies: high-redshift - galaxies: photometry -
infrared: galaxies
Abstract:
We present a multicolour catalogue of faint galaxies situated close
to bright stars, V<15, with the aim of identifying high-redshift
galaxies suitable for study with adaptive optics-equipped
near-infrared imagers and spectrographs. The catalogue is constructed
from archival calibration observations of the United Kingdom Infrared
Telescope (UKIRT) Faint Standard stars with the UKIRT Fast Track
Imager (UFTI) camera on UKIRT. We have analysed the deepest 16 fields
from the archive to provide a catalogue of galaxies brighter than
K∼20.3 lying between 3 and 25-arcsec of the guide stars. We identify
111 objects in a total survey area of 8.7arcmin2. Of these, 87 are
classified as galaxies based on their light profiles in our ∼0.5arcsec
median seeing K-band images. 12 of the galaxies have (J-K)≳2.0
consistent with them lying at high redshifts, z≳2. These 12 very red
galaxies have K-band magnitudes of K=18.1-20.1 and separations from
the guide stars of 4-20arcsec and hence are very well suited to
adaptive optics studies to investigate their morphologies and spectral
properties on sub-kpc scales. We provide coordinates and JHK
photometry for all catalogued objects.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 78 127 Catalogue of objects in FS fields
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- [CS2006] Sequential number (FSNNN-NN)
10- 13 A4 --- --- [FSAO]
15- 33 A19 --- FSAO FSAO designation (JHHMMSS.ss+DDMMSS.s)
35- 39 F5.2 mag Kmag Aperture K magnitude
41- 44 F4.2 mag e_Kmag rms uncertainty on Kmag
46- 47 A2 --- l_J-K [≥ ] Limit flag on J-K
48- 52 F5.2 mag J-K J-K colour index
54- 58 F5.2 mag e_J-K ? rms uncertainty on J-K
60- 61 A2 --- l_H-K [≥ ] Limit flag on H-K
62- 66 F5.2 mag H-K H-K colour index
68- 71 F4.2 mag e_H-K ? rms uncertainty on H-K
73 A1 --- Class [S/G] Star/Galaxy classification
75- 78 F4.1 arcsec r Distance to the star (r=0 indicates the star)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 09-May-2006