Abstract
Absolute Extreme Ultraviolet emission cross-sections have been measured for collisions between C5+ and H2O in the range of 0.113 to 3.75 keV/amu (170-979 km/s). These results are used to derive velocity-dependent triplet-to-singlet ratios and emission cross-sections of the Cv K-series following single-electron capture. Comparison with existing measurements of integral charge-changing cross-sections indicates that auto-ionizing multi-electron capture is a significant reactions channel. This reaction may indirectly populate the n=2 states and thus add strength to the K alpha emission of Cv ions thereby co-determining the hardness ratio of K-series emission of Cv.
Original language | English |
---|---|
Article number | 17 |
Number of pages | 11 |
Journal | Atoms |
Volume | 7 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1-Feb-2019 |
Keywords
- atomic data
- molecular data
- methods
- laboratory
- atomic
- solar wind
- comets
- general
- planets and satellites
- aurorae
- COMETARY X-RAY
- SELECTIVE ELECTRON-CAPTURE
- HELIUM-LIKE IONS
- SOLAR-WIND
- SLOW COLLISIONS
- CROSS-SECTIONS
- XMM-NEWTON
- SPECTROSCOPY
- ABUNDANCES