Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thanks for the memory: measuring gravitational-wave memory in the first
  LIGO/Virgo gravitational-wave transient catalog   Gravitational-wave memory, a strong-field effect of general relativity,
manifests itself as a permanent displacement in spacetime. We develop a
Bayesian framework to detect gravitational-wave memory with the Advanced
LIGO/Virgo detector network. We apply this algorithm on the ten binary black
hole mergers in LIGO/Virgo's first transient gravitational-wave catalog. We
find no evidence of memory, which is consistent with expectations. In order to
estimate when memory will be detected, we use the best current population
estimates to construct a realistic sample of binary black hole observations for
LIGO/Virgo at design sensitivity. We show that an ensemble of
$\mathcal{O}(2000)$ binary black hole observations can be used to find
definitive evidence for gravitational-wave memory. We conclude that memory is
likely to be detected in the early A+/Virgo+ era.

23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
16
The categories of this paper are: stat