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Khabre desk
Recent reporting, analysis and explainers from the white dwarfs desk.
science
An unusual mix of elements in the white dwarf HS 0209+0832, together with a repeating brightness signal, points to an evaporating giant-planet candidate. Researchers say its material may have formed from gas expelled by the star during an earlier giant phase.
science
ESO says observations with the Very Large Telescope reveal a long-lived bow shock around the white dwarf RXJ0528+2838, despite the system having no disc to drive the outflow. Its strong magnetic field may help explain the shock, but the observed field appears insufficient to account for its full inferred lifetime.
science
Astronomers found 84 unusually low-energy X-ray sources in six galaxies by searching publicly available Chandra data. Their physical nature remains unknown, but they may involve accreting black holes, neutron stars or white dwarfs.