1. The faintness of the accretion disc of an X-ray binary during quiescence is suspected to be caused by the flow of mass entering a mode called an advection-dominated accretion flow (ADAF).

휴면기에 엑스선 쌍성계의 강착원반이 어두워지는 것은 질량의 흐름이 이류성 강착(advection-dominated accretion flow; ADAF)의 형태가 되기 때문으로 생각된다.