Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The starburst-AGN of NGC1808 observed with XMM-Newton   NGC1808 is a nearby spiral galaxy that harbours an active central region with
an extent of 20 arcsec (i.e. 1 kpc). Previous X-ray and optical/NIR
observations have provided convincing evidence for the existence of a starburst
and an AGN. We present here preliminary results of the analysis of XMM-Newton
data. We show a weak high-resolution soft X-ray spectrum with only emission
lines typical of a starburst. Our analysis of the EPIC-pn spectrum shows two
thermal components, but there is an additional, hard X-ray power law tail that
is most likely due to an obscured active nucleus. Thus, our data show for the
first time the presence of emission from both components, AGN and starburst, in
one observation.

37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th