Class A, class B, and class C profiles of the Hα emission of Delorme 1 (AB)b. Right panels show the respective median profiles along with the grand median profile. Top panels illustrate the flux variation between individual epochs (in units of 10⁻¹⁶ erg cm⁻² s⁻¹ Å⁻¹) and bottom panels (with flux normalised to Hα peak intensity in the y-axis) demonstrate the comparison of profile shapes between the three classes.