Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: GRS 1915+105: Ten Years After   It is now ten years since the first microquasar GRS 1915+105 was discovered.
More than six years of observations with RossiXTE have shown a level of
variability never observed in any other X-ray source. Here I try to address
some issues, based on X-ray observations only, that have relevance for
theoretical modeling. First, I ignore these peculiarities and concentrate on
the similarities with other X-ray transients. Then I focus on the peculiar
variability and present a number of obervational facts that need to be
addressed by theoretical models.

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The categories of this paper are: cond-mat
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-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: q-alg
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The categories of this paper are: gr-qc
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The categories of this paper are: mtrl-th
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The categories of this paper are: math-ph
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The categories of this paper are: hep-th
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex