Plot of predicted TPC (panel a)) and OG (panel b)) γ-ray (black) and radio (magenta) light curves on a (α,ζ_PSR) grid. The γ-ray intensity has been normalized globally so that the maximum (typically at α = ζ_PSR = 90°) is unity and the flux of the other combinations of α and ζ_PSR relative to this maximum is clear. The x-axis denotes normalized from –0.5 to 0.5. A phase offset of 0.5 has been artificially imposed to centre the radio pulses for visual clarity. The coordinate pair in each panel refers to the value of α and ζ_PSR in each case.