• The frequency of gaseous debris discs around white dwarfs 

      Manser, Christopher; Gänsicke, Boris; Fusillo, Nicola Pietro Gentile; Ashley, Richard P.; Breedt, Elmé; Hollands, Mark; Izquierdo, Paula; Pelisoli, Ingrid Domingos (2020) [Artículo de periódico]
      A total of 1–3 per cent of white dwarfs are orbited by planetary dusty debris detectable as infrared emission in excess above the white dwarf flux. In a rare subset of these systems, a gaseous disc component is also detected ...