Hi Erik and Frank, Thank you very much for clearing up my confusion! I will try using both QuasiLocalMeasures and the ADMMass/AHFinderDirect combination.
All the best, Gwyneth On Sun, Jan 29, 2017 at 7:37 PM, Frank Loeffler <[email protected]> wrote: > 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. > > Frank > >
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