Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Global Simulations of the Interaction of Microquasar Jets with a Stellar
  Wind in High-Mass X-ray Binaries   Jets powered by high-mass X-ray binaries must traverse the powerful wind of
the companion star. We present the first global 3D simulations of jet-wind
interaction in high-mass X-ray binaries. We show that the wind momentum flux
intercepted by the jet can lead to significant bending of the jet and that jets
propagating through a spherical wind will be bent to an asymptotic angle
$\psi_{\infty}$. We derive simple expressions for $\psi_{\infty}$ as a function
of jet power and wind thrust. For known wind parameters, measurements of
$\psi_{\infty}$ can be used to constrain the jet power. In the case of Cygnus
X-1, the lack of jet precession as a function of orbital phase observed by the
VLBA can be used to put a lower limit on the jet power of $L_{\rm jet} \gtrsim
10^{36}\,{\rm ergs\,s^{-1}}$. We further discuss the case where the initial jet
is inclined relative to the binary orbital axis. We also analyze the case of
Cygnus X-3 and show that jet bending is likely negligible unless the jet is
significantly less powerful or much wider than currently thought. Our numerical
investigation is limited to isotropic stellar winds. We discuss the possible
effect of wind clumping on jet-wind interaction, which are likely significant,
but argue that our limits on jet power for Cygnus X-1 are likely unaffected by
clumping unless the global wind mass loss rate is orders of magnitude below the
commonly assumed range for Cyg X-1.

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The categories of this paper are: cond-mat
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The categories of this paper are: chao-dyn
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: quant-ph
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The categories of this paper are: q-bio
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
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The categories of this paper are: q-fin
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: stat
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The categories of this paper are: math-ph
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The categories of this paper are: adap-org
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The categories of this paper are: q-alg