Simulation data. Top row: Vertical component of the magnetic field at z = 0 km and emergent intensity at the nominal line core of the strong component of the He I 1083 nm line. Bottom row: zoom in of the region inside the red square in the top row. Panel a: Vertical component of the photospheric magnetic field at z = 0 km; panel b: emergent intensity at the nominal line core of the strong component of the He I 1083 nm.; panel c: local continuum scaled intensity of the He I 1083 nm at a Doppler shift of −18 km s⁻¹; panel d: Hα intensity at a Doppler shift of −33 km s⁻¹; panel e: Ca II K intensity at a Doppler shift of −8 km s⁻¹. The pixel marked with the filled red square is analyzed in Fig. 11.