Wide-field J- and K-band galaxy counts in the ELAIS fields
  New near-infrared galaxy counts in the J and K bands are presented over a total area of 0.70 and 0.97 degrees^2, respectively. The limiting magnitudes of the deepest regions are 19.5 in J and 18.0 in K. At J>16 and K>15 our J and K-band counts number counts agree well with existing surveys provided all data are corrected to a common magnitude scale. There are real differences from field to field, and the ELAIS N1 and N2 fields show an overdensity of J<16, K<15 galaxies. The slopes of log N(m) / dm are 0.40 to 0.45 at 15<K<18 and 16<J<19.5. Our counts favor galaxy models with a high normalization of the local luminosity function and without strong evolution. 
P. Vaisanen (1,2), E. V. Tollestrup (2), S. P. Willner (2), M. Cohen   (3,4) ((1) Helsinki, (2) CfA, (3) Berkeley, (4) Vangu...