WebMay 15, 2024 · Abstract Lyman spectra and line ratios are reported for soft-x-ray emissions following the charge exchange process in 293, 414, 586, and 1256 km/s O8+ and Kr collisions. Lyman series from Ly- α to Ly- ɛ were resolved for the O7+ ion using a high-resolution x-ray quantum microcalorimeter detector. WebThe importance of charge-exchange (CX) emission in X-ray astrophysics emerged with the discovery of bright X-ray emission from comet Hyakutake (Lisse et al. 1996) and the …
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WebApr 28, 2014 · Abstract Lyman x-ray spectra following charge exchange between C 6+ and H 2 are presented for collision velocities between 400 and 2300 km/s (1–30 keV/amu). Spectra were measured by a microcalorimeter x-ray detector capable of fully resolving the C vi Lyman series emission lines though Lyman- δ. WebFeb 22, 2024 · X-ray emission generated through solar-wind charge exchange (SWCX) is known to contaminate X-ray observation data, the amount of which is often significant or even dominant, particularly in the soft X-ray band, when the main target is comparatively weak diffuse sources, depending on the space weather during the observation. In … jfpdハンドジェル
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WebMay 1, 2000 · X-ray emission lines are produced when the emitting hosts are highly charged ions. CX emission processes are efficient, as the interaction crosssection may reach 10 −15 cm 2 (Tawara et al.... WebNew findings from the NASA-funded Diffuse X-ray emission from the Local Galaxy (DXL) mission have resolved a decades-old puzzle about a fog of low-energy X-rays observed over the entire sky. Using refurbished detectors first flown on a NASA sounding rocket in the 1970s, astronomers have now confirmed the long-held suspicion that much of this glow … Webis firm evidence for charge-exchange emission. We consider that the emission is due to the charge-exchange interaction of solar-wind heavy ions with neutrals in the magnetosheath at 2–8 Earth radii (R⊕). In this paper, we concentrate on the X-ray spectra and the emission processes, and their implica-tions for cosmic X-ray observations. jfpd プレミアムハンドジェル