Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutron stars at the dark matter direct detection frontier   Neutron stars capture dark matter efficiently. The kinetic energy transferred
during capture heats old neutron stars in the local galactic halo to
temperatures detectable by upcoming infrared telescopes. We derive the
sensitivity of this probe in the framework of effective operators. For dark
matter heavier than a GeV, we find that neutron star heating can set limits on
the effective operator cutoff that are orders of magnitude stronger than
possible from terrestrial direct detection experiments in the case of
spin-dependent and velocity-suppressed scattering.

5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th