用地震仪数据定位第一颗星际流星

Signals Pub Date : 2023-09-25 DOI:10.3390/signals4040035
Amir Siraj, Abraham Loeb
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引用次数: 1

摘要

2014年,第一颗米尺度的星际流星(IM1)被美国政府的传感器探测到,2019年被确定为星际物体候选者,并于2022年得到美国国防部的确认。我们使用附近地震仪的数据,根据国防部提供的坐标精度,将火球定位在120平方公里范围内的16平方公里范围内。改进的定位对即将到来的取回流星碎片的探险具有重要意义。
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Localizing the First Interstellar Meteor with Seismometer Data
The first meter-scale interstellar meteor (IM1) was detected by US government sensors in 2014, identified as an interstellar object candidate in 2019, and confirmed by the Department of Defense (DoD) in 2022. We use data from a nearby seismometer to localize the fireball to a ∼16km2 region within the ∼120km2 zone allowed by the precision of the DoD-provided coordinates. The improved localization is of great importance for a forthcoming expedition to retrieve the meteor fragments.
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来源期刊
CiteScore
3.20
自引率
0.00%
发文量
0
审稿时长
11 weeks
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