W Ursae Majoris variable stars
type: Concept
broader: Contact binary stars

Contact binary stars
type: Concept
contributor: AAS Frey.Katie
modified: 2020-10-27T13:21:27.738Z
modified: 2020-10-27T13:21:07.406Z
broader: Interacting binary stars
definition: A binary star system in which the two components are so close that they exchange gases in a complex manner. Their overlapping gravitational fields form a 'peanut' shaped equipotential surface.
narrower: W Ursae Majoris variable stars

Interacting binary stars
type: Concept
narrower: Contact binary stars