Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Obscured AGN: clues from high-resolution imaging and spectroscopy   We present a sample of 8 Seyfert 2 galaxies observed by HST, Chandra and
XMM-Newton. All of the sources present soft X-ray emission which is coincident
in extension and overall morphology with the [OIII] emission. The spectral
analysis reveals that the soft X-ray emission of all the objects is likely to
be dominated by a photoionized gas. We tested with the code CLOUDY a simple
scenario where the same gas photoionized by the nuclear continuum produces both
the soft X-ray and the [OIII] emission. Solutions satisfying the observed ratio
between the two components exist, and require the density to decrease with
radius roughly like $r^{-2}$, similarly to what often found for the Narrow Line
Region.

25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
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The categories of this paper are: eess
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con