Volume 406, Number 2, August I 2003
|Page(s)||593 - 601|
|Published online||17 November 2003|
I. Near-infrared imaging
Max-Planck-Institut für extraterrestrische Physik, Postfach 1312, 85741 Garching, Germany e-mail: [ajb,davies,mlehnert,thatte,vacca]@mpe.mpg.de
2 University of Oxford Astrophysics, Keble Road, Oxford OX1 3RH, UK e-mail: firstname.lastname@example.org
3 European Southern Observatory, Alonso de Cordova 3107, Casilla 19001, Vitacura, Santiago, Chile e-mail: email@example.com
4 Sterrewacht Leiden, Postbus 9513, 2300 RA Leiden, The Netherlands e-mail: [miley,rottgeri]@strw.leidenuniv.nl
Corresponding author: A. J. Baker, firstname.lastname@example.org
Accepted: 27 May 2003
As a prerequisite for cosmological studies using adaptive optics techniques, we have begun to identify and characterize faint sources in the vicinity of bright stars at high Galactic latitudes. The initial phase of this work has been a program of imaging conducted with SOFI at the ESO NTT. From observations of 42 southern fields evenly divided between the spring and autumn skies, we have identified 391 additional stars and 1589 galaxies lying at separations from candidate guide stars in the magnitude range . When analyzed as a “discrete deep field” with area, our dataset gives galaxy number counts that agree with those derived previously over the range . This consistency indicates that in the aggregate, our fields should be suitable for future statistical studies. We provide our source catalogue as a resource for users of large telescopes in the southern hemisphere.
Key words: instrumentation: adaptive optics / galaxies: photometry / infrared: galaxies / infrared: stars
Based on observations obtained at the European Southern Observatory, Chile, for programmes 66.A-0361 and 68.A-0440.
© ESO, 2003
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