Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search For Rapid X-ray Variability from the Black-Hole Candidate GRO
  J1655-40   We have examined fifteen days of CGRO/BATSE data, obtained during the first
outburst of the black-hole candidate source GRO J1655-40, to search for rapid
variability of its X-ray flux. We find no evidence for significant variability
of GRO J1655-40 during our observations, with a 2 sigma upper limit to the
fractional r.m.s. amplitude in the frequency range 0.03-0.488 Hz of 6.6%. We
cannot, on the basis of our observations, determine the source state (low,
high, or very-high state) of GRO J1655-40.

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The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
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The categories of this paper are: nucl-th
3
The categories of this paper are: physics
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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: gr-qc
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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: ao-sci
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The categories of this paper are: econ
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The categories of this paper are: hep-lat
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The categories of this paper are: funct-an
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The categories of this paper are: supr-con