Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Timing analysis of the Seyfert-1 galaxy MCG-6-30-15 with XMM-Newton data   We present the main results of a deep timing analysis (in the 0.2-10 keV
energy band) of the bright Seyfert-1 galaxy MCG-6-30-15 performed on XMM-Newton
data. The light-curves and hardness ratios show that the source has large flux
and spectral variations on time-scales of a few kiloseconds at most. From the
analysis of both the power spectra and the structure function of the light
curves we detected a relevant source variability between time-scales of ~0.3
and ~10 ks. Based on this result, we extracted a characteristic size of the
X-ray emitting region of the order of 10^13 cm.

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The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
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The categories of this paper are: adap-org
18
The categories of this paper are: econ
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The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
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The categories of this paper are: math-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: funct-an
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The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg