Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Signatures of middle aged, nearby pulsars in the cosmic ray lepton
  spectrum?   Recent data reported by the PAMELA and ATIC experiments, as well as cosmic
ray lepton results from FERMI and H.E.S.S. collaborations sparked a series of
papers explaining these results either by contributions of electron positron
pairs to the local interstellar cosmic ray (CR) spectrum by dark matter (DM) or
pulsars. Focusing here on pulsars, we argue that at the present, our knowledge
about particle acceleration at pulsars as well as of the local Galactic CR
propagation is still limited, i.e. the recent results for CR electrons and
positrons constrain pulsar and propagation models. We will thus not present
another attempt to explain the data by contributions of pulsars to the local CR
lepton flux but rather to highlight the caveats in doing so.

36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ