Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Parametric derivation of the observable relativistic periastron advance
  for binary pulsars   We compute the dimensionless relativistic periastron advance parameter $k$,
which is measurable from the timing of relativistic binary pulsars. We employ
for the computation the recently derived Keplerian-type parametric solution to
the post-Newtonian (PN) accurate conservative dynamics of spinning compact
binaries moving in eccentric orbits. The parametric solution and hence the
parameter $k$ are applicable for the cases of \emph{simple precession}, namely,
case (i), the binary consists of equal mass compact objects, having two
arbitrary spins, and case (ii), the binary consists of compact objects of
arbitrary mass, where only one of them is spinning with an arbitrary spin. Our
expression, for the cases considered, is in agreement with a more general
formula for the 2PN accurate $k$, relevant for the relativistic double pulsar
PSR J0737--3039, derived by Damour and Sch\"afer many years ago, using a
different procedure.

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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: eess
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The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
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The categories of this paper are: hep-th
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The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
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The categories of this paper are: cond-mat
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The categories of this paper are: cs
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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-ex