Initial data and coordinates for multiple black hole systems
- 24 December 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 59 (2) , 024015
- https://doi.org/10.1103/physrevd.59.024015
Abstract
We present here an alternative approach to data setting for spacetimes with multiple moving black holes generalizing the Kerr-Schild form for rotating or nonrotating single black holes to multiple moving holes. Because this scheme preserves the Kerr-Schild form near the holes, it selects out the behavior of null rays near the holes, may simplify horizon tracking, and may prove useful in computational applications. For computational evolution, a discussion of coordinates (lapse function and shift vector) is given which preserves some of the properties of the single-hole Kerr-Schild form.Keywords
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