Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Moment Density of Zipoy's Dipole Solution   Zipoy used spheroidal coordinates to construct a family of static
axisymmetric gravitational fields included in Weyl's class. We calculate the
mass moment source for the dipole solution using techniques previously
developed for magnetic and angular momentum densities and compare it with the
Newtonian analog studied by Bonnor and Sackfield.

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The categories of this paper are: astro-ph
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The categories of this paper are: supr-con
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The categories of this paper are: physics
12
The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph