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LEONID DAILY NEWS: August 31, 2002

DC8 crew

UV 251-384 nm spectrum of a Leonid meteor.


Peter Jenniskens, Ed Tedesco, Jayant Murthy, Christophe Laux and Stephen Price report in the August issue of Meteorics and Planetary Science on the analysis of a Leonid meteor spectrum detected with the Midcourse Space Explorer (MSX) imaging spectrometers (UVISI) during the Leonid shower of 1997. This was one of several meteors observed from space that year. For the first time, a spectrum of a meteor was recorded in the ultraviolet, showing strong emission lines of ionized and neutral magnesium. It is found that the ionized line is a unique probe of the ionization conditions in the warm meteor plasma.

Previous news items:
Aug 31 - First UV spectrum: Leonid from space
Dec. 11 - Meteor high speed imaging
Dec 01 - Impacts on the Moon
Nov 29 - Dr. May Greenberg has passed away
Nov 26 - Persistent train emissions
Nov 24 - Results of near-real time flux measurements
Nov 22 - Optical meteor spectra
Dec. 25 - Ursid shower circular IMO
Dec. 24 - Ursid shows early release of sodium
Dec. 23 - Ursid outburst confirmed
Dec. 18 - Dec 22 Ursid outburst
Nov. 20 - A bacterial fingerprint?
Nov. 15 - HCN disappears mysteriously
Nov. 14 - Meteor shower from space
Nov. 13 - Organic fingerprint
Nov. 12 - Train airglow chemistry
Nov. 11 - Hard bits and persisting glows
Nov. 10 - Meteoroid debris detected
Nov. 09 - New meteor picture
Nov. 08 - Spin city
Nov. 07 - Meteors affect atmospheric chemistry
Nov. 06 - Listen to this!
Nov. 04 - Fear of heights?
Nov. 03 - The pale (infra-red) dot
Nov. 02 - Twin showers
Nov. 01 - Leonids approaching Earth
Oct. 31 - Prospects for Moon Impact Studies
Oct. 30 - Comet dust crumbled less fine
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Results of this research were published in Meteoritics and Planetary Science.

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