Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A scenario of the formation of isolated X-ray pulsars with anomalously
  long period   A scenario of the formation of isolated X-ray pulsars is discussed with an
application to one of the best studied objects of this class 1E 161348-5055.
This moderately luminous, 10^33 - 10^35 erg/s, pulsar with a relatively soft
spectrum, kT ~ 0.6-0.8 keV, is associated with an isolated neutron star, which
is located near the center of the young (~2000 yr) compact supernova remnant
RCW 103 and rotates steadily (|d\nu/dt| < 2.6 x 10^-18 Hz/s) with the period of
6.7 hr. We show that in the current epoch the neutron star is in the accretor
state. The parameters of the source emission can be explained in terms of the
magnetic-levitation accretion scenario in which the star with the surface
magnetic field of 10^12 G accretes material onto its surface from a
non-Keplerian magnetic fossil disk at the rate 10^14 g/s. A neutron star could
evolve to this state in a High-Mass X-ray Binary (HMXB), which had
disintegrated during the supernova explosion powered by the core-collapse of
its massive component. The life-time of an isolated X-ray pulsar formed this
way can be as long as a few thousand years.

14
The categories of this paper are: math-ph
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
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int