Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Efficient common-envelope ejection through dust-driven winds   Common-envelope evolution (CEE) is the short-lived phase in the life of an
interacting binary-system during which two stars orbit inside a single shared
envelope. Such evolution is thought to lead to the inspiral of the binary, the
ejection of the extended envelope and the formation of a remnant short-period
binary. However, detailed hydrodynamical models of CEE encounter major
difficulties. They show that following the inspiral most of the envelope is not
ejected; though it expands to larger separations, it remains bound to the
binary. Here we propose that dust-driven winds can be produced following the
CEE. These can evaporate the envelope following similar processes operating in
the ejection of the envelopes of AGB stars. Pulsations in an AGB-star drives
the expansion of its envelope, allowing the material to cool down to low
temperatures thus enabling dust condensation. Radiation pressure on the dust
accelerates it, and through its coupling to the gas it drives winds which
eventually completely erode the envelope. We show that the inspiral phase in
CE-binaries can effectively replace the role of stellar pulsation and drive the
CE expansion to scales comparable with those of AGB stars, and give rise to
efficient mass-loss through dust-driven winds.

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The categories of this paper are: cond-mat
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The categories of this paper are: hep-th
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: bayes-an
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The categories of this paper are: q-alg
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: alg-geom
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ph
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The categories of this paper are: nlin
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The categories of this paper are: math
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The categories of this paper are: gr-qc