Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Swift uncovers that SAX J0840.7+2248 is not an X-ray Binary, but
  BeppoSAX X-ray Rich GRB 980429   During our Swift/XRT program to obtain X-ray positions at arcsecond level for
a sample of Galactic X-ray binaries, we discovered that SAX J0840.7+2248 is not
a binary, but rather BeppoSAX/WFC+GRBM X-ray Rich GRB 980429. Here we report on
this discovery and on the properties of this long, X-ray rich gamma-ray burst,
from prompt to (very) late followup.

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The categories of this paper are: math
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: physics
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The categories of this paper are: dg-ga
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-th
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The categories of this paper are: stat
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-lat
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The categories of this paper are: cs