Roche lobe overflow occurs when a star in a binary system expands and fills its Roche lobe, causing mass transfer from one star to another due to gravitational interaction. This process can lead to significant changes in the structure and evolution of both stars involved, impacting their lifecycles and leading to phenomena like nova explosions or the formation of accretion disks.
congrats on reading the definition of roche lobe overflow. now let's actually learn it.