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تسجيل مستخدم جديدDiscoveries of Diffuse Iron Line Sources from the Sgr B Region
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The radio complex Sgr B region is observed with the X-Ray Imaging Spectrometers (XIS) on board Suzaku. This region exhibits diffuse iron lines at 6.4, 6.7 and 6.9 keV, which are K$alpha$ lines of Fe emissiontype{I} (neutral iron), Feemissiontype{XXV} (He-like iron) and Feemissiontype{XXVI} (H-like iron), respectively. The high energy resolving power of the XIS provides the separate maps of the K-shell transition lines from Feemissiontype{I} (6.4 keV) and Feemissiontype{XXV} (6.7 keV). Although the 6.7 keV line is smoothly distributed over the Sgr B region, a local excess is found near at $(l, b) = (timeform {0D.61}, timeform{0D.01})$, possibly a new SNR. The plasma temperature is textit{kT} $sim$3 keV and the age is estimated to be around several$times10^{3}$ years. The 6.4 keV image is clumpy with local excesses nearby Sgr B2 and at $(l, b) = (timeform{0D.74}, -timeform{0D.09})$. Like Sgr B2, this excess may be another candidate of an X-ray reflection nebula (XRN).
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