[Users] ADMMass Issue

Frank Loeffler knarf at cct.lsu.edu
Sun Jan 29 11:37:16 CST 2017

On Sun, Jan 29, 2017 at 12:41:20PM +0200, Gwyneth Allwright wrote:
>Hi All,
>I've been trying to use the ADMMass thorn to calculate the ADM mass for a
>binary black hole system. The initial ADM mass given by TwoPunctures is
>0.989, but ADMMass returns 0.031 (using both of the available methods).
>Does anyone know what could be going wrong? Alternatively, are there other
>thorns that can be used to calculate the ADM mass?

The ADMMass thorn calculates the ADMMass by the spacetime, but not 
including punctures. The best way to go about that is to exclude the BH 
interior from the ADMMass calculation (there are already parameters for 
that), and to add the BH mass returned by the AHFinder (AHFinderDirect) 
to that for a total mass.


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