Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: INTEGRAL/IBIS survey of the Sagittarius Arm Tangent region: A source
  catalog   Analysis of 18-120 keV images of the Sagittarius Arm Tangent region (SATR)
obtained by IBIS telescope onboard INTEGTRAL observatory during the spring of
2003 is performed. In the 18-60 keV energy range, 28 sources have been detected
with a flux level above 1.4 mCrab. Of these sources, 16 were identified earlier
as galactic X-ray binary systems, 3 as extragalactic objects, 2 as pulsars
inside supernova remnants, and 7 has unknown nature. The analysis revealed the
presence of three previously unknown sources. Fourteen sources show significant
flux in the 60-120 keV energy range

23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom