Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: AGN and Galaxy evolution from Deep X-ray surveys   Deep X-ray surveys are providing crucial information on the evolution of AGN
and galaxies. We review some of the latest results based on the X-ray spectral
analysis of the sources detected in the Chandra Deep Field South, namely: i)
constraints on obscured accretion; ii) constraints on the missing fraction of
the X-ray background; iii) the redshift distribution of Compton-thick sources
and TypeII QSO; iv) the detection of star formation activity in high-z galaxies
through stacking techniques; v) the detection of large scale structure in the
AGN distribution and its effect on nuclear activity. Such observational
findings are consistent with a scenario where nuclear activity and star
formation processes develop together in an anti-hierarchical fashion.

18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph