Papaloizou–Pringle instability

The Papaloizou–Pringle instability is a type of instability that occurs in rotating disks of gas and is particularly relevant to astrophysical contexts, such as accretion disks around black holes and other compact objects. The instability is named after the astrophysicists Alex Papaloizou and John Pringle, who described it in the context of astrophysical disks in the 1980s.