Cataclysmic variable orb. periods from Gaia phot.

The orbital-period (Porb) gap in the population of cataclysmic variables (CVs) informs the theoretical narrative of CV evolution, yet a complete understanding of the driving...激变变星（cataclysmic variables, CVs）族群中的轨道周期（orbital period, Porb）间隙，可为激变变星的演化理论图景提供关键支撑，然而目前对其驱动……的完整理解仍有待完善