Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Total recoil: the maximum kick from nonspinning black-hole binary
  inspiral   When unequal-mass black holes merge, the final black hole receives a ``kick''
due to the asymmetric loss of linear momentum in the gravitational radiation
emitted during the merger. The magnitude of this kick has important
astrophysical consequences. Recent breakthroughs in numerical relativity allow
us to perform the largest parameter study undertaken to date in numerical
simulations of binary black hole inspirals. We study non-spinning black-hole
binaries with mass ratios from $q=M_1/M_2=1$ to $q =0.25$ ($\eta = q/(1 + q)^2$
from 0.25 to 0.16). We accurately calculate the velocity of the kick to within
6%, and the final spin of the black holes to within 2%. A maximum kick of
$175.2\pm11$ km s$^{-1}$ is achieved for $\eta = 0.195 \pm 0.005$.

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The categories of this paper are: hep-ex
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
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The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
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The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
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The categories of this paper are: adap-org
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The categories of this paper are: econ
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph