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

被引：44
作者：
Trigo-Rodríguez, JM
Llorca, J
Fabregat, J
机构：
[1] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Astrobiol Ctr, Los Angeles, CA 90095 USA
[2] Inst Estudis Espacials Catalunya, Edifici Nexus, Barcelona 08034, Spain
[3] Univ Barcelona, Dept Quim Inorgan, E-08007 Barcelona, Spain
[4] Univ Valencia, Astron Observ, Edifici Inst Invest, Valencia 46980, Spain
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2004年 / 348卷 / 03期
关键词：
astrochemistry; techniques : spectroscopic; comets : general; meteors; meteoroids;
D O I：
10.1111/j.1365-2966.2004.07389.x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The 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 lP/Halley comet dust were also found.
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页码：802 / 810
页数：9
相关论文
共 49 条
  • [1] First results of high-definition TV spectroscopic observations of the 1999 Leonid meteor shower
    Abe, S
    Yano, H
    Ebizuka, N
    Watanabe, J
    [J]. EARTH MOON AND PLANETS, 1998, 82-3 (0): : 369 - 377
  • [2] ABUNDANCES OF THE ELEMENTS - METEORITIC AND SOLAR
    ANDERS, E
    GREVESSE, N
    [J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 1989, 53 (01) : 197 - 214
  • [3] Spectral analysis of two Perseid meteors
    Borovicka, J
    Betlem, H
    [J]. PLANETARY AND SPACE SCIENCE, 1997, 45 (05) : 563 - &
  • [4] 2 COMPONENTS IN METEOR SPECTRA
    BOROVICKA, J
    [J]. PLANETARY AND SPACE SCIENCE, 1994, 42 (02) : 145 - 150
  • [5] Radiation study of two very bright terrestrial bolides and an application to the Comet S-L 9 collision with Jupiter
    Borovicka, J
    Spurny, P
    [J]. ICARUS, 1996, 121 (02) : 484 - 510
  • [6] First results from video spectroscopy of 1998 Leonid meteors
    Borovicka, J
    Stork, R
    Bocek, J
    [J]. METEORITICS & PLANETARY SCIENCE, 1999, 34 (06): : 987 - 994
  • [7] BOROVICKA J, 1993, ASTRON ASTROPHYS, V279, P627
  • [8] Borovicka J, 2001, ESA SP PUBL, V495, P203
  • [9] Time resolved spectroscopy of a Leonid fireball afterglow
    Borovicka, J
    Jenniskens, P
    [J]. EARTH MOON AND PLANETS, 1998, 82-3 (0): : 399 - 428
  • [10] CEPLECHA Z, 1977, B ASTRON I CZECH, V28, P328
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