The Champions League match between Arsenal and the Croatian club Dinamo Zagreb at the Emirates this evening was already shaping up to be a crunch clash, with the winner probably keeping their
slim hopes of qualifying for the next
phase of the competition alive and also putting themselves in a strong position to at least stay in Europe and drop
down to the Europa League.
The rapid rotation created by mass transfer between the two stars appears necessary to generate the ultra-strong magnetic field and then a second mass transfer
phase allows the magnetar - to - be to
slim down sufficiently so that it does not collapse into a black hole at the moment of its death.