Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The mid-infrared emission of Seyfert galaxies. A new analysis of ISOCAM
  data   We present mid-infrared data of a sample of 57 AGNs obtained with the
instrument ISOCAM on board the satellite ISO. The images were obtained through
the LW2 (6.75 microns) and LW7 (9.62 microns) filters. This is a new analysis
of Clavel et al. (2000) galaxy sample, which is divided into 26 type 1 (< or =
1.5) and 28 type 2 (> 1.5) Seyfert galaxies, plus three QSOs. The spatial
resolution of the images allow us to separate the nuclear and the extended
contributions to the total emission after decomposing the brightness profiles
into different morphological components. The most common components are a
central point source (identified as the active nucleus) and an exponential
disk. In some cases a bulge, a bar or a ring are needed. The relative
contribution of the nucleus to the total emission appears larger in Seyfert 1
than in Seyfert 2. This result confirms that both types of Seyfert galaxies are
different in the mid-infrared and supports the existence of an structure which
produces anisotropic emission in this wavelength range. We have also explored
correlations between the mid-infrared and the radio and X-ray wavelength
ranges. The well established radio/infrared correlation is mantained in our
sample for the global emission of the galaxies. If only the nuclear infrared
emission is considered then a non-linear correlation is apparent in the
luminosity-luminosity scatter diagram. The ratio between the intrinsic hard
X-ray and the nuclear mid-infrared emission presents large scatter and slightly
larger values for type 2 Seyfert galaxies. These results seem to be consistent
with the presence of a clumpy dusty torus surrounding the active nucleus.

12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat