In this scenario, the white dwarf would be emitting gravitational waves as it swirls around 1ES 1927+654. This would cause the dead star to draw closer to the black hole, which would cause it to ...

The white dwarfs have a combined mass of around 1.56 ... this will reduce to around 30 or 40 seconds as they draw ever closer together. When this happens, mass from one star will fall onto its ...