Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: THESEUS: a key space mission concept for Multi-Messenger Astrophysics   The recent discovery of the electromagnetic counterpart of the gravitational
wave source GW170817, has demonstrated the huge informative power of
multi-messenger observations. During the next decade the nascent field of
multi-messenger astronomy will mature significantly. Around 2030, third
generation gravitational wave detectors will be roughly ten times more
sensitive than the current ones. At the same time, neutrino detectors currently
upgrading to multi km^3 telescopes, will include a 10 km^3 facility in the
Southern hemisphere that is expected to be operational around 2030. In this
review, we describe the most promising high frequency gravitational wave and
neutrino sources that will be detected in the next two decades. In this
context, we show the important role of the Transient High Energy Sky and Early
Universe Surveyor (THESEUS), a mission concept proposed to ESA by a large
international collaboration in response to the call for the Cosmic Vision
Programme M5 missions. THESEUS aims at providing a substantial advancement in
early Universe science as well as playing a fundamental role in multi-messenger
and time-domain astrophysics, operating in strong synergy with future
gravitational wave and neutrino detectors as well as major ground- and
space-based telescopes. This review is an extension of the THESEUS white paper
(Amati et al. 2017), also in light of the discovery of GW170817/GRB170817A that
was announced on October 16th, 2017.

28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
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The categories of this paper are: eess
7
The categories of this paper are: hep-th