Body zone coordinates and near zone coordinates. In the near zone coordinates , both the body zone and the star shrink as (thin dotted arrow) and (thick dotted arrow) respectively. Both the thin and thick arrows point inside. In the body zone coordinates , the star does not shrink while the body zone boundary goes to infinity as (thin dotted line pointing outside).
Gravitational energy momentum flux through the body zone boundary. The meshed two circles represent stars and . Each star is surrounded by the body zone represented here by a striped area. The arrows around star represent the gravitational energy momentum flux flowing through the body zone boundary.
The vectors used in the surface integral over the boundary of the body zone 1.
Flowchart of the post-Newtonian iteration.
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