Observational evidence for stream/disk interaction

Horne (1993)

Light Curve of Z Cha decomposed into emission from Bright spot, white dwarf, and accretion disk.

Parmar et al. (1986) Light curve of LMXB exhibiting "dips"

Richards 1994

Doppler tomography of an Algol-type binary showing evidence of tidal stream in Halpha emission.