Abstract
We report on new Suzaku and XMM-Newton results concerning HESS J1614� 518, which is one of the brightest extended TeV � -ray sources and has two regions with intense � -ray emission. We newly observed the south and center regions of HESS J1614� 518 with Suzaku, since the north region, including the position of the 1st brightest peak of the TeV � -ray emission, has already been observed. No X-ray counterpart was found at the position of the 2nd brightest peak of the TeV � -ray emission; we estimated the upper limit of the X-ray flux to be 1.6 � 10 � 13 erg cm � 2 s � 1 in the 2–10 keV band. The soft X-ray source Suzaku J1614� 5152, which was found at the edge of the field of view in a previous observation, was also detected at the middle of HESS J1614� 518. Analyzing the XMM-Newton archival data, we revealed that Suzaku J1614� 5152 consists of multiple point sources. The X-ray spectrum of the brightest point source, XMMU J161406.0� 515225, can be described by a power-law model with a photon index of Γ= 5.2 +0:6
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