Other
Scientific paper
Sep 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006head....9.0505m&link_type=abstract
American Astronomical Society, HEAD meeting #9, #5.05; Bulletin of the American Astronomical Society, Vol. 38, p.348
Other
Scientific paper
We will review the first results of Suzaku on
Galactic diffuse objects. In particular, the X-ray CCDs
(XIS) on board Suzaku are one of the best instruments for
the study of diffuse objects thanks to its high energy
resolution and low stable background. Here are some
examples of the results we have obtained so far: (1) The XIS
was able to resolve the three Kalpha lines from H-like,
He-like, and neutral irons completely, and these lines make
precise line diagnostics possible for the first time. The
center energy and width of He-like iron line favor a
collisional excitation rather than a charge exchange as the
origin for the line emission. (2) We also observed some of
the unidentified TeV gamma-ray objects. HESSJ1616-508 is one
of them and is very bright TeV source which is spatially
extended. However, we found no clear counterpart in X-ray
band and the flux ratio of TeV to X-ray is about 60. The
unusual large ratio makes HESSJ1616 is a real candidate for
``dark particle accelerators''. On the other hand, we found
X-ray counterpart from another TeV source, HESSJ1804-216.
(3) The back-illuminated (BI) CCD of XIS detected emission
lines of highly ionized carbons and nitrogens from the
Cygnus Loop for the first time.
Matsumoto Hironori
Suzaku Team
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