Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Numerical simulations of axisymmetric hydrodynamical Bondi-Hoyle
  accretion onto a compact object   Bondi-Hoyle accretion configurations occur as soon as a gravitating body is
immersed in an ambient medium with a supersonic relative velocity. From
wind-accreting X-ray binaries to runaway neutron stars, such a regime has been
witnessed many times and is believed to account for shock formation, the
properties of which can be only marginally derived analytically. In this paper,
we present the first results of the numerical characterization of the
stationary flow structure of Bondi-Hoyle accretion onto a compact object, from
the large scale accretion radius down to the vicinity of the compact body. For
different Mach numbers, we study the associated bow shock. It turns out that
those simulations confirm the analytical prediction by Foglizzo & Ruffert
(1996) concerning the topology of the inner sonic surface with an adiabatic
index of 5/3. They also enable us to derive the related mass accretion rates,
the position and the temperature of the bow shock, as function of the flow
parameters, along with the transverse density and temperature profiles in the
wake.

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The categories of this paper are: hep-th
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ex
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The categories of this paper are: econ
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The categories of this paper are: cmp-lg
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The categories of this paper are: math-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: eess
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The categories of this paper are: q-fin
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The categories of this paper are: hep-lat
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The categories of this paper are: stat
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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg
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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn