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 8.7 arcmin 2 . Of these, 87 are classified as galaxies based on their light profiles in our ∼0.5 arcsec 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 4-20 arcsec 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.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.