On the radiation driven alignment of dust grains: Detection of the polarization hole in a starless coreF. O. Alves, P. Frau, J. M. Girart, G. A. P. Franco, F. P. Santos and H. WiesemeyerA&A, 569 (2014) L1DOI: https://doi.org/10.1051/0004-6361/201424678