A Note on Causal Hydrodynamics for M-Theory Branes

We obtain new transport coefficients of causal hydrodynamics for the M2 and the M5-branes using a Kubo-like formula proposed by Baier, Romatschke, Son. Starinets, and Stephanov (arXiv:0712.2451). The relaxation times agree with the ones obtained from the sound mode in our paper (arXv:0712.2916).