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Description
  • High dispersion photographic spectra of three Leonid and five Perseid meteors are used to derive relative abundances of nine chemical elements in the radiating meteoric vapors and in the meteoroids. Al and Ca were found to be incompletely evaporated in the main spectral component at 5000 K but completely evaporated in the second component at 10,000 K. Si lines are present in both components which enhances the reliability of determination of the Si abundance. The composition of the meteoroids was found to be more similar to comet Halley than to chondritic meteoroids. Fe, Cr, and Mn are depleted and Si, Na, and H are enhanced relative to Mg in comparison with CI chondrites.
  • High dispersion photographic spectra of three Leonid and five Perseid meteors are used to derive relative abundances of nine chemical elements in the radiating meteoric vapors and in the meteoroids. Al and Ca were found to be incompletely evaporated in the main spectral component at 5000 K but completely evaporated in the second component at 10,000 K. Si lines are present in both components which enhances the reliability of determination of the Si abundance. The composition of the meteoroids was found to be more similar to comet Halley than to chondritic meteoroids. Fe, Cr, and Mn are depleted and Si, Na, and H are enhanced relative to Mg in comparison with CI chondrites. (en)
  • Použili jsme vysokodisperzní fotografická spektra tří meteorů z roje Leonid a pěti meteorů z roje Perseid k určení relativního zastoupení devíti chemických prvků v zářícím plynu a v samotných meteoroidech. Ukázalo se, že hliník a vápník jsou v hlavní spektrální složce při teplotě 5000 K neúplně odpařeny, ale v druhé složce při 10 000 K je již odpaření úplné. Čáry křemíku byly nalazeny v obou složkách, což zvýšilo spolehlivost určení tohoto prvku. Zjistili jsme, že složení meteoroidu je podobnější Halleyově kometě než chondritům. Obsah železa, chrómu a manganu je oproti uhlíkatým chondritům ve srovnání s hořčíkem snížený a obsah křemíku, sodíku a vodíku naopak zvýšený. (cs)
Title
  • Elemental Abundances in Leonid and Perseid Meteoroids
  • Elemental Abundances in Leonid and Perseid Meteoroids (en)
  • Zastoupení prvků v meteoroidech z rojů Leonid a Perseid (cs)
skos:prefLabel
  • Elemental Abundances in Leonid and Perseid Meteoroids
  • Elemental Abundances in Leonid and Perseid Meteoroids (en)
  • Zastoupení prvků v meteoroidech z rojů Leonid a Perseid (cs)
skos:notation
  • RIV/67985815:_____/05:00031963!RIV06-AV0-67985815
http://linked.open.../vavai/riv/strany
  • 245;253
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA205/02/0982), Z(AV0Z1003909)
http://linked.open...iv/cisloPeriodika
  • 1-4
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 520088
http://linked.open...ai/riv/idVysledku
  • RIV/67985815:_____/05:00031963
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http://linked.open.../riv/klicovaSlova
  • meteors; meteoroids; spectroscopy (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [603A47B7F5AB]
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  • Earth, Moon, and Planets
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 95
http://linked.open...iv/tvurceVysledku
  • Borovička, Jiří
http://linked.open...n/vavai/riv/zamer
issn
  • 0167-9295
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