Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The non-segregated population of blue straggler stars in the remote
  globular cluster Palomar 14   We used deep wide-field observations obtained with the Canada-France-Hawaii
Telescope to study the blue straggler star (BSS) population in the innermost
five arcminutes of the remote Galactic globular cluster Palomar 14. The BSS
radial distribution is found to be consistent with that of the normal cluster
stars, showing no evidence of central segregation. Palomar 14 is the third
system in the Galaxy (in addition to OmegaCentauri and NGC 2419) showing a
population of BSS not centrally segregated. This is the most direct evidence
that in Palomar 14 two-body relaxation has not fully established energy
equipartition yet, even in the central regions (in agreement with the estimated
half-mass relaxation time, which is significantly larger than the cluster age).
These observational facts have important implications for the interpretation of
the shape of the mass function and the existence of the tidal tails recently
discovered in this cluster.

37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph