Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Discriminating same-mass Neutron Stars and Black Holes gravitational
  wave-forms   Gravitational wave-forms from coalescences of binary black hole systems and
binary neutron star systems with low tidal effects can hardly be distinguished
if the two systems have similar masses. In the absence of discriminating power
based on the gravitational wave-forms, the classification of sources into
binary neutron stars, binary black holes and mixed systems containing a black
hole and a neutron star can only be unambiguous when assuming the standard
model of stellar evolution and using the fact that there exists a mass gap
between neutron stars and black holes. This approach is however limited by its
own assumptions: for instance the 2.6 solar mass object detected in the
GW190814 event remains unclassified, and models of new physics can introduce
new compact objects, like primordial black holes, which may have masses in the
same range as neutron stars. Then, without an electromagnetic counterpart
(kilonova), classifying mergers of compact objects without mass gap criteria
remains a difficult task, unless the source is close enough. In what follows we
investigate a procedure to discriminate a model between binary neutron star
merger and primordial binary black hole merger by using a Bayes factor in
simulated wave-forms that we superimpose to realistic detector noise.

28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
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The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex