HARPS spectropolarimetry of three sharp-lined Herbig Ae stars: New insightsS. P. Järvinen, T. A. Carroll, S. Hubrig, M. Schöller, I. Ilyin, H. Korhonen, M. Pogodin and N. A. DrakeA&A, 584 (2015) A15DOI: https://doi.org/10.1051/0004-6361/201526903