... to exist in our galaxy. However, until now, scientists had never found evidence of a surviving giant planet around a white dwarf. “It was one of those chance discoveries,” says researcher Boris Gänsicke, from the University of Warwick in the UK, who...
...up by further observations with ground-based instruments, three sources were consistent with having previously been white-dwarf companions (to other white dwarfs) before at least one of them exploded as a Type Ia. Aside from speed, the team were also...
...another intriguing property of its central star; X-rays. Despite no longer undergoing nuclear fusion reactions in their cores, white dwarfs can still produce x-rays by siphoning off material from a nearby companion star. As this captured matter falls...
... perspective. “After ruling out a range of potential experimental errors, we started to suspect that the interaction between the white dwarf and neutron star was not as simple as had been assumed to date,’ says Willem van Straten a co-author...
... leach off material from its neighbour to such a degree that the piled on gas will cause the white dwarf to explode as a nova once it reaches a critical mass. The dramatic and sudden energies created ejects material into...
...case, the stars in question consist of a white dwarf and a brown dwarf roughly 1000 light-years away in a system ... around the double stars and is flowing onto the surface of the white dwarf, equates to an asteroid at least 4 kilometres in size and is...