Monthly Notices of the Royal Astronomical Society Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2015, 456 (2), pp.1767-1790. ⟨10.1093/mnras/stv2773⟩ Monthly Notices of the Royal Astronomical Society, 2015, 456 (2), pp.1767-1790. ⟨10.1093/mnras/stv2773⟩ MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 456, 1767-1790 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY