While EMPing ships so they fall into Sirius B, I noticed some odd behaviour. When I EMPed an EI200 and its escorting Ronin/B, the Ronin fell in first because it was closer....but stopped dead a certain distance from the sun. When the freighter fell in and was destroyed, the Ronin then accelerated from a standstill as normal. It seems that the 'anchoring' the game applies to escorting ships can cause some issues.