Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Identification of 5 Interacting Binaries in the Galactic Bulge Survey   We present optical lightcurves, spectroscopy, and classification of five
X-ray sources in the Chandra Galactic Bulge Survey [CXOGBS J174009.1-284725
(CX5), CXOGBS J173935.7-272935 (CX18), CXOGBS J173946.9-271809 (CX28), CXOGBS
J173729.1-292804 (CX37), CXOGBS J174607.6-261547 (CX561)]. These objects were
selected based on bright optical counterparts which were quickly found to have
emission lines in their optical spectra. This paper presents an illustration of
GBS optical follow-up, targeting emission line objects. Of these five objects,
four exhibit photometric variability in the Sloan r' band. CX5 shows a
tentative period of 2.1 hours and is clearly an Intermediate Polar (IP). CX28
and CX37 both exhibit flickering with no clear period. Both are suggested to
also be IPs. CX18 was observed to undergo 2 dwarf nova outbursts. Finally,
CX561 shows no detectable variability, although its characteristics would be
consistent with either a quiescent Low Mass X-ray Binary or Cataclysmic
Variable.

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The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
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The categories of this paper are: math
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
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The categories of this paper are: mtrl-th
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The categories of this paper are: chao-dyn