| タイトル | Quantifying the Exospheric Component of Soft X-ray Emission |
| 著者（英） | Cravens, Thomas; Collier, Michael R.; Robertson, Ina; Hansen, Kenneth; Snowden, Steven L.; Kuntz, Kip |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2007-12-10 |
| 言語 | eng |
| 内容記述 | High charge state heavy ions in the solar wind exchange charge with ambient neutral gas. This process creates a product ion in an excited state. During the radiative cascade process, EUV and X-ray photons are emitted with energies in the range of about 100 eV to 1 keV. Because the terrestrial exospheric density at the nominal magnetopause location is relatively high, approx. 10 cu cm, solar wind charge exchange, or SWCX, can be observed by Earth-orbiting soft X-ray instruments such as the ROSAT Position Sensitive Proportional Counters (PSPC). In this presentation, we will compare simulated and observed soft Xray emission during an event on August 18-19, 1991 and discuss the role of exospheric SWCX emission for this and other events. |
| NASA分類 | Solar Physics |
| 権利 | Copyright |
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