BGLS: A Bayesian formalism for the generalised Lomb-Scargle periodogram A. Mortier, J. P. Faria, C. M. Correia, A. Santerne and N. C. Santos A&A, 573 (2015) A101 Published online: 06 January 2015 DOI: 10.1051/0004-6361/201424908