Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Suzaku observations of two diffuse hard X-ray source regions, G22.0+0.0
  and G23.5+0.1   G22.0+0.0 and G23.5+0.1 are diffuse hard X-ray sources discovered in the ASCA
Galactic Plane Survey. We present Suzaku results of spectral analysis for these
sources. G22.0+0.0 is confirmed to be a largely extended emission. The spectra
were represented by a highly absorbed power-law model with a photon index of
1.7+/-0.3 and a moderately absorbed thermal emission with a temperature of
0.34^{+0.11}_{-0.08} keV. The difference in the N_{H} values between the two
components suggests that the thermal component is unrelated with the power-law
component and is a foreground emission located in the same line-of-sight.
G23.5+0.1 is an extended source with a size of 3'.5. The spectra were fitted
with an absorbed power-law model with a photon index of 2.4^{+0.5}_{-0.4}. The
spatial and spectral properties show that both are candidates of old pulsar
wind nebulae (PWNe). In addition to the extended sources, we analyzed spectra
of three point sources found in the observed fields. Based on the spectral
features, we discuss origin of the sources.

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The categories of this paper are: patt-sol
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The categories of this paper are: econ
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The categories of this paper are: q-bio
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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: nucl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: supr-con
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The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin