We show that with the simple assumption of no correlation between the Ly-alpha equivalent width and the UV luminosity of a galaxy, the observed distribution of high redshift galaxies in an equivalent width - absolute UV magnitude plane can be reproduced. We further show that there is no dependence between Ly-alpha equivalent width and Ly-alpha luminosity in a sample of Ly-alpha emitters. The test was expanded to Lyman-break galaxies and again no dependence was found. Simultaneously, we show that a recently proposed lack of large equivalent width, UV bright galaxies (Ando et al. 2006) can be explained by a simple observational effect, based on too small survey volumes.
@article{arxiv.0907.3733,
title = {On the dependence between UV luminosity and Lyman-alpha equivalent width in high redshift galaxies},
author = {Kim K. Nilsson and Ole Moeller-Nilsson and Palle Moeller and Johan P. U. Fynbo and Alice E. Shapley},
journal= {arXiv preprint arXiv:0907.3733},
year = {2009}
}