Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Constraining the equation of state of neutron stars using multimessenger
  observations   Neutron stars are the densest objects known in our visible universe.
Properties of matter inside a neutron star are encoded in its equation of
state, which has wide-ranging uncertainty from a theoretical perspective. With
the current understanding of quantum chromodynamics, it is hard to determine
the interactions of neutron star matter at such high densities. Also performing
many body calculations is computationally intractable. Besides the constitution
of the neutron star core is highly speculative -- it is not ruled out that it
contains exotic matter like strange baryons, meson condensates, quark matter,
etc. Although the matter inside the neutron star is extremely dense, but the
temperature of this object is very cold in most of its life span. We cannot
produce such dense but rather cold material in our laboratory. Since probing
the physics of neutron star matter is inaccessible by our earth based
experiments, we look for astrophysical observations of neutron stars. This
thesis deals with the theoretical and computational techniques required to
translate neutron star observables from astrophysical observations to its
equation of state.

9
The categories of this paper are: nlin
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat