Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evolution of near-extremal-spin black holes using the moving puncture
  technique   We propose a new radial coordinate to write the Kerr metric in puncture form.
Unlike the quasi-radial coordinate introduced previously, the horizon radius
remains finite in our radial coordinate in the extreme Kerr limit a/M -> 1.
This significantly improves the accuracy of the evolution of black holes with
spins close to the extreme Kerr limit. We are able to evolve accurately both
stationary and boosted black holes with spins as high as a/M=0.99 using initial
data constructed in these new puncture coordinates. Initial data of compact
binaries with rapidly spinning black holes can be constructed using our
proposed new puncture metric for the background conformal metric. Our
simulations for single black holes suggest that such initial data can be
evolved successfully by the moving puncture technique.

15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con