Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modified gravitational wave propagation: information from strongly
  lensed binaries and the BNS mass function   Modified gravitational wave propagation is a smoking gun of modifications of
gravity at cosmological scales, and can be the most promising observable for
testing such theories. The observation of gravitational waves (GW) in recent
years has allowed us to start probing this effect, and here we briefly review
two promising ways of testing it. We will show that, already with the current
network of detectors, it is possible to reach an interesting accuracy in the
estimation of the $\Xi_0$ parameter (that characterizes modified gravitational
wave propagation, with $\Xi_{0, {\rm GR}} = 1$) and with next generation
facilities, such as the Einstein Telescope, we can get a sub-percent
measurement.

25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat