Lorentz Shaped Comet Dust Trail Cross Section from New Hybrid Visual and Video Meteor Counting Technique - Implications for Future Leonid Storm Encounters

被引：0

作者：

Peter Jenniskens

Chris Crawford

Steven J. Butow

David Nugent

Mike Koop

David Holman

Jane Houston

Klaas Jobse

Gary Kronk

Kelly Beatty

机构：

[1] NASA/Ames Research Center,SETI Institute

[2] California Meteor Society,undefined

[3] Dutch Meteor Society,undefined

[4] American Meteor Society,undefined

[5] North American Meteor Network,undefined

[6] Sky & Telescope,undefined

来源：

Earth, Moon, and Planets | 1998年 / 82-83卷

关键词：

Comet; comet: 55P/Tempel-Tuttle; dust trail; flux; Leonids 1999; Lorentz profile; meteor; meteor storm; predictions; satellite impact hazard; observing techniques;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A new hybrid technique of visual and video meteor observations was developed to provide high precision near real-time flux measurements for satellite operators from airborne platforms. A total of 33,000 Leonids, recorded on video during the 1999 Leonid storm, were watched by a team of visual observers using a video head display and an automatic counting tool. The counts reveal that the activity profile of the Leonid storm is a Lorentz profile. By assuming a radial profile for the dust trail that is also a Lorentzian, we make predictions for future encounters. If that assumption is correct, we passed 0.0003 AU deeper into the 1899 trailet than expected during the storm of 1999 and future encounters with the 1866 trailet will be less intense than predicted elsewhere.

引用

页码：191 / 208

页数：17