Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anisotropies in the Motions and Positions of the Galactic Globular
  Clusters   The velocity ellipsoid for 38 globular clusters with [Fe/H] <= -1.0 is
derived and shown to be significantly anisotropic with major axis directed
towards low Galactic latitude. Principal axes of the spatial distribution of
different groups of clusters are derived and compared with the velocity
ellipsoid. The metal poor cluster spatial distribution is significantly
flattened along an axis which coincides within the uncertainties with the major
axis of the velocity ellipsoid. Given the observed steep age-metallicity
relation for metal poor clusters, one speculative interpretation of the data is
that an initially flattened filament underwent a relatively rapid initial
transverse collapse forming satellite galaxies and metal poor globular clusters
while the protogalaxy collapsed and assembled more slowly along the filament
acquiring and/or redistributing angular momentum in the process.

36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
19
The categories of this paper are: eess