Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: First analysis of eight Algol-type binaries: EI Aur, XY Dra, BP Dra, DD
  Her, VX Lac, WX Lib, RZ Lyn, and TY Tri   The available photometry from the online databases were used for the first
light curve analysis of eight eclipsing binary systems EI Aur, XY Dra, BP Dra,
DD Her, VX Lac, WX Lib, RZ Lyn, and TY Tri. All these stars are of Algol-type,
having the detached components and the orbital periods from 0.92 to 6.8 days.
For the systems EI Aur and BP Dra the large amount of the third light was
detected during the light curve solution. Moreover, 468 new times of minima for
these binaries were derived, trying to identify the period variations. For the
systems XY Dra and VX Lac the third bodies were detected with the periods 17.7,
and 49.3 years, respectively.

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The categories of this paper are: cs
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The categories of this paper are: bayes-an
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The categories of this paper are: eess
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The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int
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The categories of this paper are: adap-org
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The categories of this paper are: quant-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ph
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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: q-bio
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The categories of this paper are: econ
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The categories of this paper are: math-ph
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The categories of this paper are: plasm-ph