SiO J = 5−4 jet emission. The stars points towards the fitted position of both Cep E-A and B cores. Left: the blue and red contours represent the integrated line emission between −135 and −110 km s⁻¹ and between +40 and +80 km s⁻¹, respectively. Base contour and contour spacing of both jet emission are 10% of their maximum intensity. Right: the blue and red contours represent the integrated line emission between −80 and −40 km s⁻¹ and between +50 and +70 km s⁻¹, respectively. Base contour and contour spacing of both jet emissions are 5% and 10% of their maximum intensity, respectively.