SIMBAD references

We present a measurement of the K-band luminosity function (LF) of field galaxies obtained from near-infrared imaging of a sample of 345 galaxies selected from the Stromlo-APM Redshift Survey. The LF is reasonably well fitted over the 10-mag range -26≤M_K≤-16 by a Schechter function with parameters α=-1.16±0.19, M*=-23.58±0.42 and φ*=0.012±0.008Mpc^–3, assuming a Hubble constant of H₀=100km.s^–1Mpc^–1. We have also estimated the LF for two subsets of galaxies subdivided by the equivalent width of the Hα emission line at EW(Hα)=10Å. There is no significant difference in LF shape between the two samples, although there is a hint (∼1σ significance) that emission-line galaxies (ELGs) have M* roughly 1mag fainter than non-ELGs. Contrary to the optical LF, there is no difference in faint-end slope α between the two samples.