Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The X-ray-Infrared/Submillimetre Connection and the Legacy Era of
  Cosmology   We review some recent results on the identification and characterisation of
Active Galactic Nuclei (AGN) obtained by cross correlating X-ray surveys with
infrared and submillimetre surveys. We also look toward the scientific gains
that could be achieved from an XMM-Newton survey of the medium-deep legacy
fields that are being observed at ~1-850um.

26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex