Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observed luminosity difference between isolated and binary MSPs   We perform a brief census of velocities of isolated versus binary millisecond
pulsars. We find the velocities of the two populations are indistinguishable.
However, the scale height of the binary population is twice that of the
isolated population and the luminosity functions of the two populations are
different. We suggest that the scale height difference may be an artifact of
the luminosity difference. We examine the magnetic fields of the two
populations as a possible source of the luminosity difference.

21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat