• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Spacecraft and Rockets >Near-Ultraviolet Spectroscopy of the Stardust Sample Return Capsule Reentry
【24h】

Near-Ultraviolet Spectroscopy of the Stardust Sample Return Capsule Reentry

机译：星尘样品返回胶囊进入的近紫外光谱。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The 320-460 nm wavelength emission of the Stardust Sample Return Capsule's reentry in Earth's atmosphere was observed remotely with an intensified slitless spectrograph, which recorded spectra at a video rate of 29.97 frames/s. The spectral response remained constant during the full range of recovery, with only motion blurring from imperfect guiding contributing to small variations in detection response. The data are well suited for evaluating the temporal variation of the intensity of the various light-emitting components. A line of zinc identifies the period when a layer of ZnO pigment containing thermal protection paint was ablated. Ca~+ emission was more intense during (and just following) the ablation of this zinc, but present throughout flight. Shock emission from nitrogen is no longer detected shortly after peak heating. The data are dominated by strong molecular band emission from the radical CN. The CN band intensity is thought to be proportional to the carbon ablation rate from the heat shield. Corrected for distance, the CN band intensity peaked early in flight, before peak heating, followed by an exponential decrease through peak heating.
机译：使用增强型无缝光谱仪远程观察了星尘样品返回舱进入大气层的320-460 nm波长发射，该光谱仪以29.97帧/秒的视频速率记录了光谱。在整个恢复范围内，光谱响应保持恒定，只有不完善的引导导致运动模糊，从而导致检测响应的微小变化。该数据非常适合于评估各种发光组件的强度的时间变化。锌线表示烧蚀含ZnO颜料的热保护涂料层的时间。在锌的烧蚀过程中（和之后），Ca〜+的释放更加强烈，但在整个飞行过程中都存在。峰值加热后不久，不再检测到氮气发出的冲击波。数据主要来自CN基团的强分子带发射。 CN带强度被认为与来自隔热罩的碳烧蚀率成比例。校正距离后，CN谱带强度在飞行之前，加热高峰之前达到峰值，然后通过加热峰值呈指数下降。

著录项

  • 来源
    《Journal of Spacecraft and Rockets》 |2010年第5期|p.753-756|共4页
  • 作者

    Richard L. Rairden; Peter Jenniskens;

  • 作者单位

    Lockheed Martin Advanced Technology Center, Palo Alto, California 94304 3251 Hanover Street, Dept. ADCS, Building 255;

    rnSETI Institute, Mountain View, California 94043 Carl Sagan Center, 515 North Whisman Road;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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