Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The ARCHES project   ARCHES (Astronomical Resource Cross-matching for High Energy Studies) is a
FP7-Space funded project whose aim is to provide the international astronomical
community with well-characterised multi-wavelength data in the form of spectral
energy distributions (SEDs) for large samples of objects extracted from the
3XMM DR5 X-ray catalogue of serendipitous sources. The project has developed
new tools implementing fully probabilistic simultaneous cross-correlation of
several catalogues for unresolved sources and a multi-wavelength finder for
clusters of galaxies for extended sources. These enhanced resources have been
tested in the framework of several science cases.

21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio