6533b854fe1ef96bd12af2f1
RESEARCH PRODUCT
Chemical abundances determined from meteor spectra: I. Ratios of the main chemical elements
Juan FabregatJordi LlorcaJiri BorovickaJosep M. Trigo-rodríguezJosep M. Trigo-rodríguezsubject
GeophysicsInterplanetary dust cloudMeteoroidSpace and Planetary ScienceChemistryChondriteAnalytical chemistryChemical compositionSpectral lineAstrobiologydescription
Relative chemical abundances of 13 meteoroids were determined by averaging the composition of the radiating gas along the fireball path that originated during their penetration into the Earth's atmosphere. Mg, Fe, Ni, Cr, Mn, and Co abundances, relative to Si, are similar to those reported for CI and CM carbonaceous chondrites and interplanetary dust particles. In contrast, relative abundances of Ca and Ti in meteor spectra indicate that these elements suffer incomplete evaporation processes. The chemical composition of all meteoroids studied in this work differs from that of 1P/Halley dust.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-08-01 | Meteoritics & Planetary Science |