The H alpha luminosity functions of nearby clusters of galaxies

We present a deep wide field Halpha imaging survey of the central regions of the two nearby clusters of galaxies Coma and Abell 1367, taken with the WFC at the INT 2.5m telescope. We determine for the first time the Schechter parameters of the Halpha luminosity function (LF) of cluster galaxies. The Halpha LFs of Abell 1367 and Coma are compared with each other. Typical parameters of phi approximate to 10(0.00+/-0.07) Mpc(-3), L-* approximate to 10(41.25+/-0.05) erg sec(-1) and alpha approximate to -0.70+/-0.10 are found for both clusters