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| Titel |
Evaporation of high speed sporadic meteors |
| VerfasserIn |
E. Murad, C. Roth |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 4, no. 3 ; Nr. 4, no. 3 (2004-05-18), S.737-740 |
| Datensatznummer |
250001713
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| Publikation (Nr.) |
 copernicus.org/acp-4-737-2004.pdf |
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| Zusammenfassung |
| Recent measurements conducted at the Arecibo Observatory report high-speed
sporadic meteors having velocities near 50 km/s. The results seem to
indicate a bimodal velocity distribution in the sporadic meteors (maxima at
~20 km/s and ~50 km/s). The particles have a maximum mass of
~1µg. This paper will present an analysis of the ablation of 1µg
meteoroids having velocities of 20, 30, 50, and 70 km/s. The
calculations show that there is fractionation even for the fast meteoroids,
the effect being particularly noticeable for the 1µg sporadic
particles, and less so for the heavier particles. The relevance of the
calculations to the radar observations of the sporadic meteors will be
discussed. |
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