Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Time-resolved spectroscopy of DROXO X-ray sources: Flares and FeKalpha
  emission   We present a systematic search for Fe Kalpha emission from young stellar
objects of the rho Ophiuchi star forming region observed in the Deep Rho
Ophiuchi XMM-Newton Observation (DROXO).

18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn