Spectro-astrometry of the pre-transitional star LkCa 15 does not reveal an accreting planet but extended Hα emissionI. Mendigutía, R. D. Oudmaijer, P. C. Schneider, N. Huélamo, D. Baines, S. D. Brittain and M. AberasturiA&A, 618 (2018) L9DOI: https://doi.org/10.1051/0004-6361/201834233
