Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectral Transitions in Cyg X-1 and Other Black Hole X-Ray Binaries   We show that the model proposed by Esin, McClintock & Narayan (1997) for the
low state, intermediate state and high state of the black hole soft X-ray
transient, Nova Muscae 1991, is consistent with the spectral evolution of the
black hole X-ray binary, Cyg X-1, during the hard-to-soft state transition
observed in 1996. We also apply the model to the outbursts of two other black
hole X-ray transients, GRO J0422+32 and GRO J1719-24.

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The categories of this paper are: bayes-an
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The categories of this paper are: math
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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: nucl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: ao-sci
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The categories of this paper are: cs
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The categories of this paper are: hep-th
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The categories of this paper are: physics
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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: cmp-lg