IBS dependence on the wind momentum flux ratio, here for f_v = 3. Left to right: small β (pulsar dominated) to large β (companion dominated). Top: images of the heated companion and the IBS shock contact discontinuity, viewed from the orbital plane at ﹩{\phi }_{B}=\pi /2﹩. Middle: IBS synchrotron emission pattern on the sky, with each panel covering ﹩{\phi }_{B}=0﹩ (pulsar inferior conjunction) to ﹩{\phi }_{B}=2\pi ﹩, and viewing angle i = 0 to π. Bottom: IBS synchrotron light curves for the sample inclinations ﹩i=90^\circ ,70^\circ ,50^\circ ;﹩ two orbital periods are shown for clarity.