Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radial Velocity Studies of Close Binary Stars.VII. Methods and
  Uncertainties   Methods used in the radial-velocity program of short-period binary systems at
the David Dunlap Observatory are described with particular stress on the
Broadening Function (BF) formalism. This formalism has permitted determination
of radial velocities from complex spectra of multiple-component systems with
component stars showing very different degree of rotational line broadening.
The statistics of random errors of orbital parameters is discussed on the basis
of the available orbital solutions presented in the six previous papers of the
series, each with ten orbits. The difficult matter of systematic uncertainties
in orbital parameters is illustrated for one typical case of GM Dra from the
most recent Paper VI.

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The categories of this paper are: math
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The categories of this paper are: cmp-lg
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The categories of this paper are: stat
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The categories of this paper are: physics
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The categories of this paper are: plasm-ph
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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
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The categories of this paper are: eess
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The categories of this paper are: solv-int
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: bayes-an