It just mentions that the magnetic field aligns itself with the accreditation disc in such a way that it disallows further mass absorption. Otherwise a white dw

It just mentions that the magnetic field aligns itself with the accreditation disc in such a way that it disallows further mass absorption. Otherwise a white dwarf would not be very luminous on its own and be switched off. Don't know exactly how it interacts with the mass in the accreditation disc, but it would seem feasible to call it that name.