Iron Emission Lines on the Galactic Ridge Observed with Suzaku

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dc.creatorYamauchi, Shigeo
dc.creatorEbisawa, Ken
dc.creatorTanaka, Yasuo
dc.creatorKoyama, Katsuji
dc.creatorMatsumoto, Hironori
dc.creatorYamasaki, Noriko Y.
dc.creatorTakahashi, Hiromitsu
dc.creatorEzoe, Yuichiro
dc.date2008-10-02
dc.date.accessioned2026-07-07T10:06:59Z
dc.date.available2026-07-07T10:06:59Z
dc.descriptionIn order to elucidate origin of the Galactic Ridge X-ray Emission, we analyzed Suzaku data taken at various regions along the Galactic plane and studied their Fe-K emission line features. Suzaku resolved the Fe line complex into three narrow lines at ~6.4 keV,~6.7 keV and ~6.97 keV, which are K-lines from neutral (or low-ionized), He-like, and H-like iron ions, respectively. The 6.7 keV line is clearly seen in all the observed regions and its longitudinal distribution is consistent with that determined from previous observations. The 6.4 keV emission line was also found in various Galactic plane regions (b~0). Differences in flux ratios of the 6.4 keV/6.7 keV and 6.97 keV/6.7 keV lines between the Galactic plane and the Galactic center regions are studied and its implication is discussed.
dc.descriptionAccepted for publication in PASJ Suzaku 3rd special issue
dc.identifierhttps://arxiv.org/abs/0810.0317
dc.identifierhttp://arxiv.org/abs/0810.0317
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/170484
dc.subjectAstrophysics
dc.titleIron Emission Lines on the Galactic Ridge Observed with Suzaku
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