Model light curves (30 minutes cadence) of detached BH–star systems with different orbital periods: ﹩0.5\,\mathrm{days}﹩ (top left panel), ﹩3\,\mathrm{days}﹩ (top right panel), and ﹩10\,\mathrm{days}﹩ (bottom panel). The primary is a sunlike star, the BH mass is ﹩10\,{M}_{\odot }﹩, and the orbit is assumed to be circular and edge-on. When the orbital inclination i is far from π/2, the “self-lensing” pulse at time 0 vanishes.