A wide-field K-band survey - I. Galaxy counts in B, V, I and K

Abstract

We present bright galaxy number counts measured with linear detectors in the B, V, I, and K bands in two fields covering nearly 10 square degrees. All of our measurements are consistent with passive evolution models, and do not confirm the steep slope measured in other surveys at bright magnitudes. Throughout the range 16 < B < 19, our B-band counts are consistent with the "high normalization" models proposed to reduce the faint blue galaxy problem. Our K-band counts agree with previous measurements, and have reached a fair sample of the universe in the magnitude range where evolution and K-corrections are well understood.

Accepted for publication in MNRAS. 5 pages in LaTex, including 4 postscript figures, requires mn.sty and epsf.sty. Postscript version available from ftp://star-ftp.dur.ac.uk/pub/preprints/bviknumct.ps.gz

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