Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Long term monitoring of the BHC 1E 1740.7-2942   The microquasar 1E 1740.7-2942 is one of the most appealing source of the
Galactic Centre region. The high energy feature detected once by SIGMA has been
searched in the last years by INTEGRAL, but never confirmed. Classified as a
persistent source, on 2004 it showed a quiescent-like state. In fact for few
month 1E 1740.7-2942 was below the detector sensitivity level. We present the
long term temporal behaviour of 1E 1740.7-2942 observed by INTEGRAL and RXTE in
2004 and 2005, as well as preliminary results on possible spectral transitions.

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The categories of this paper are: math
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ph
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
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The categories of this paper are: hep-th