869069.fig.001a
(a)
869069.fig.001b
(b)
Figure 1: The function 𝑓 ( 𝑟 ) for various values of 𝑀 for fixed values of 𝑄 and 𝛽 . In the top graph (a), 𝑄 = 1 and 𝛽 = 1 . In the bottom graph (b), 𝑄 = 0 . 3 and 𝛽 = 1 .