COSMOLOGICAL CONSTRAINT REVISITED FROM KAPPA-BAND GALACTIC COUNTS

The information of Omega(Lambda) of a hat universe is extracted from K band galaxy number counts, without using evolution (NE) models. Cowie ct al.'s observations, with model input luminosity functions taken fr om Efstathiou et al. (1988), Loveday et al. (1992) and Mobasher et al. (1993), give (nh) in the range: 0.59 similar to 0.81 plus a typical r andom error of sigma(Omega Lambda) = 0.2-0.1, respectively. Keek's obs ervations give Omega(Lambda) = 0.9. We conclude that either the normal ization of nearby luminosity function is too high or the cosmological constant cannot be too large.