Cool Stars 14 - Submitted Abstract # 179 This version created on 05 October 2006 Identification of near-UV predissociation lines of CH in carbon-enhanced Fe-poor stars B. Plez, Universite Montpellier 2 T. Masseron, Ohio State University S. Van Eck, Universite Libre de Bruxelles A. Jorissen, Universite Libre de Bruxelles P.F. Coheur, Universite Libre de Bruxelles M. Godefroid, Universite Libre de Bruxelles N. Christlieb, Hamburg University In the course of a study of carbon-enhanced metal-poor (CEMP) stars, we came across wide and shallow lines spread in the wavelength ranges 366-377nm and 392-413nm. These lines appear to be predissociations lines belonging to the CH B-X electronic transition system. Due to the much shortened lifetime of the upper levels that dissociate through tunnel-effect, the lines are very broad. We present a new line list including these predissociation lines, and show comparisons of calculated line profiles with observations of CEMP stars. We demonstrate that natural broadening alone does allow to reproduce the observed lines. ----------------------------------