CEDAR: Clustering of Instruments for the Study of Long- Enduring Meteor Trails

CEDAR：用于研究长期流星轨迹的仪器集群

• 批准号: 9714736
• 负责人: Michael Kelley
• 金额: --
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-01-01 至 2000-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9714736&HistoricalAwards=false
• 关键词: CEDAR; Clustering; Instruments; Study; Long

Investigators are observing a remarkable physical phenomenon: long-lived luminous trails left behind by some meteors. Using the Arecibo Observatory and the Starfire Optical Range, researchers are observing during the Leonids meteor showers in November of 1997, 1998, and 1999. Primarily, they hope to definitively observe meteoric smoke and dust formation, predicted (but not yet verified) forty years ago. Next, they investigate the sodium nightglow band as a potential source for long-lived visual trails, dusty plasma physics as a contributor to radar scatter, and incoherent scatter reports of meteor trails and the ablation and subsequent dynamics of sodium atoms behind a meteor. Finally, they are determining these trails' feasibility for gravity wave studies.

研究人员正在观察一种非凡的物理现象：一些流星留下的长时间发光轨迹。利用阿雷西博天文台和星火光学望远镜，研究人员正在观测1997年、1998年和1999年11月的狮子座流星雨。首先，他们希望明确地观察到四十年前预测（但尚未证实）的大气烟雾和尘埃的形成。接下来，他们研究了钠夜光带作为长期视觉轨迹的潜在来源，尘埃等离子体物理作为雷达散射的贡献者，流星轨迹的非相干散射报告以及流星背后钠原子的消融和随后的动力学。最后，他们正在确定这些痕迹对重力波研究的可行性。