Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Total gravitational mass of the Galactic Double Neutron Star systems:
  evidence for a bimodal distribution   So far, in total 15 double neutron star systems (DNSs) with a reliable
measurement of the total gravitational mass ($M_{\rm T}$) have been detected in
the Galaxy. In this work we study the distribution of $M_{\rm T}$. The data
prefer the double Gaussian distribution over a single Gaussian distribution and
the low and high mass populations center at $M_{\rm T}\sim 2.58M_\odot$ and
$\sim 2.72M_\odot$, respectively. The progenitor stars of GW170817 have a
$M_{\rm T}=2.74^{+0.04}_{-0.01}M_\odot$, falling into the high mass population.
With a local neutron star merger rate of $\sim 10^{3}~{\rm Gpc^{-3}~yr^{-1}}$,
supposing the $M_{\rm T}$ of those merging neutron stars also follow the double
Gaussian distribution, the upcoming runs of the advanced LIGO/Virgo will soon
detect some events with a $M_{\rm T}\lesssim 2.6M_\odot$ that can effectively
probe the equation of state of the neutron stars and the distribution function
is expected to be reliably reconstructed in the next decade.

15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org