The horizontal axis gives eta from 0 to 1, and the vertical axis gives G of xi and eta from 0 to 5. The legend lists M 0, M 1, and M 2. Most curves start near 1 and decrease towards 0 as eta approaches 1. For Q negative 0.05, the curves decrease steadily from about 1 to near 0. For Q 0, the curves decrease more gradually from about 1 to near 0. For Q 0.05, the curves rise first and then decrease, with the highest curve reaching about 4.5 before falling towards 0.