Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The light curve of V605 Aql   ``Nova Aquilae No. 4'', discovered in 1919, later renamed V605 Aql, was
recognized to be a final helium flash object only in the 1980s. Clayton and De
Marco (1997) gave a detailed description of the available spectroscopic and
photometric material. Here we try to re-analyze the photometric record. The
photographic material is still available and has been used to construct a
revised light curve. Only fragments of the visual observations were published;
the remainder appears to be lost.

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The categories of this paper are: stat
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The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
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The categories of this paper are: eess
30
The categories of this paper are: q-alg
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The categories of this paper are: econ
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The categories of this paper are: nlin
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: plasm-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: math