首页> 外文OA文献 >A high charge state coronal mass ejection seen through solar wind charge exchange emission as detected by XMM-Newton
【2h】

A high charge state coronal mass ejection seen through solar wind charge exchange emission as detected by XMM-Newton

机译:通过XMM-Newton检测到的通过太阳风电荷交换发射看到的高电荷态日冕物质抛射

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

We present the analysis of an observation by XMM–Newton that exhibits strongly variable, low-energy diffuse X-ray line emission. We reason that this emission is due to localized solar wind charge exchange (SWCX), originating from a passing cloud of plasma associated with a Coronal mass ejection (CME) interacting with neutrals in the Earth's exosphere. This case of SWCX exhibits a much richer emission-line spectrum in comparison with previous examples of geocoronal SWCX or in interplanetary space. We show that emission from O viii is very prominent in the SWCX spectrum. The observed flux from oxygen ions of Graphic is consistent with SWCX resulting from a passing CME. Highly ionized silicon is also observed in the spectrum, and the presence of highly charged iron is an additional spectral indicator that we are observing emission from a CME. We argue that this is the same event detected by the solar wind monitors Advanced Composition Explorer and Wind which measured an intense increase in the solar wind flux due to a CME that had been released from the Sun 2 d previous to the XMM–Newton observation.
机译:我们通过XMM–Newton观测结果进行分析,该观测结果显示出可变性强,低能量的X射线扩散线辐射。我们认为,这种排放是由于局部太阳风电荷交换(SWCX)引起的,源于与日冕质量抛射(CME)相关联的穿过的等离子体云与地球外层中性粒子相互作用。与以前的地球冠状SWCX实例或行星际空间相比,这种SWCX实例显示出更丰富的发射谱线。我们显示,来自O viii的发射在SWCX光谱中非常突出。从Graphic的氧离​​子观察到的通量与通过CME产生的SWCX一致。在光谱中也观察到高度离子化的硅,并且高电荷铁的存在是我们正在观察CME发射的另一光谱指标。我们认为这是由太阳风监测器Advanced Composition Explorer和Wind检测到的同一事件,该事件测量了XMM–Newton观测之前从太阳2 d释放出的CME引起的太阳风通量的急剧增加。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号