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Paper: Suzaku Discovery of Two Peculiar Clumps at the South End of the Radio Arc
Volume: 439, The Galactic Center: a Window to the Nuclear Environment of Disk Galaxies
Page: 438
Authors: Fukuoka, R.; Koyama, K.; Ryu, S. G.; Tsuru, T. G.
Abstract: Radio non-thermal filaments and diffuse X-ray emission in the 6.4 keV line from neutral irons are unique structures seen only in the Galactic center (GC) region. These features are sites of high-energy activity, and hold the clue to clarify the structure of the GC. To search for a correlation of radio non-thermal filaments and 6.4 keV or any other X-ray band emission, Suzaku observed the GC region near the Radio Arc at ∼20′ southeast of Sagittarius A*. In the 18’×18’ field of view, we found a small clump in a higher energy band (4–6 keV), and a peculiar clump in the 6.4 keV line band. Both of them are located at the south end of the Radio Arc. We report on the results, and discuss the origin of these X-ray sources.
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