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Astron. Astrophys. 351, 192-194 (1999) AcknowledgementsJGLR is grateful to PPARC for the provision of a research studentship. We thank J.E. Dyson and M.G. Hoare for pointing out that we should mention the radiation emitted by T-Tauri winds, and G.E. Ciolek for constructive comments. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 1999 Online publication: November 2, 1999 ![]() |