I believe it is the standard version, at least when T mu nu is stored, for which T_mu nu = rho h u_mu u_nu + P g_mu nu, and you need to include the 8 pi terms any time it appears as the RHS of the Einstein equation. I don't know personally how McLachlan actually calculates the RHS of the field equations in detail.
-J
On Tue, Mar 13, 2012 at 4:35 PM, Roland Haas roland.haas@physics.gatech.edu wrote:
Hello Josh, all,
Fixed factors of 8 pi in definition of matter sources
Just out of (morbid) curiosity: what is actually used in the code?
Yours, Roland
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