| 项目编号: | 1708855
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| 项目名称: | Long Wavelength Array (LWA) Observations of Meteor Trail Radio Emission: A Laboratory for Terrestrial Plasma Physics |
| 作者: | Gregory Taylor
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| 承担单位: | University of New Mexico
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| 批准年: | 2017
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| 开始日期: | 2017-09-01
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| 结束日期: | 2020-08-31
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| 资助金额: | 83142
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| 资助来源: | US-NSF
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| 项目类别: | Continuing grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | meteor
; radio wave emission
; radio
; video measurement
; telescope array
; postdoctoral student
; sevilleta national wildlife refuge
; large minority population
; wind information
; radio signal
; formation mechanism
; video camera
; similar time scale
; ongoing search
; astronomical research
; dedicated exhibit
; meteor emission
; extraterrestrial object
; meteor radio emission
; detailed image
|
| 英文摘要: | This project addresses the relatively recently observed phenomenon of radio wave emission by meteor trails. Ionized meteor trails have long been providing temperature and wind information in the mesosphere and lower thermosphere by reflecting radio signals. However, the mechanism for radio wave emission by ablating meteors is largely unknown. Knowledge of meteor emissions is highly pertinent to ongoing searches for extraterrestrial objects on similar time scales (seconds to minutes). This project will use radio and video measurements to explore the structure, time evolution, and formation mechanism of the meteor radio emissions.
The areas near the PI's telescope arrays are instrumented with video cameras. This suite of radio and video measurements will be used to triangulate the trajectories of the meteors, and take detailed images to measure the trail's expansion. The telescopes are a community resource that facilitates astronomical research, and involve undergraduate, graduate, and postdoctoral students at a university serving a large minority population. The telescope arrays are situated within the Sevilleta National Wildlife Refuge, and engage the public through a dedicated exhibit at the wildlife visitor center. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/89146
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Gregory Taylor. Long Wavelength Array (LWA) Observations of Meteor Trail Radio Emission: A Laboratory for Terrestrial Plasma Physics. 2017-01-01.
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