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Chemical abundances determined from meteor spectra II. Evidence for enlarged sodium abundances in meteoroids

AuthorsTrigo-Rodríguez, Josep María ; Llorca, Jordi; Fabregat, Juan
Techniques: spectroscopic
Comets: general
Meteors, meteoroids
Issue Date30-Jan-2004
PublisherBlackwell Publishing
CitationMonthly Notices of the Royal Astronomical Society (MNRAS) 348(3): 802-810 (2004)
AbstractThe relative abundances of sodium in meteoroids have been estimated by averaging the composition of the radiating gas along the fireball path produced during their atmospheric entry. We used the method of thermal equilibrium for 13 fireballs produced by meteoroids mainly of cometary origin. The results show greater sodium abundances than those expected for interplanetary dust particles and chondritic meteorites, and interesting differences from the sodium abundance of 1P/Halley comet dust were also found.
Description9 pages, 5 figures.-- Printed version published Mar 2004.
Erratum (extra references) available at: http://digital.csic.es/handle/10261/10752
Publisher version (URL)http://dx.doi.org/10.1111/j.1365-2966.2004.07389.x
Appears in Collections:(ICE) Artículos
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