Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pulsar kicks via spin-1 color superconductivity   We propose a new neutrino propulsion mechanism for neutron stars which can
lead to strong velocity kicks, needed to explain the observed bimodal velocity
distribution of pulsars. The spatial asymmetry in the neutrino emission is
naturally provided by a stellar core containing spin-1 color-superconducting
quark matter in the A phase. The neutrino propulsion mechanism switches on when
the stellar core temperature drops below the transition temperature of this
phase.

33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an