The elemental composition of asteroid 433 Eros: Results of the NEAR-Shoemaker x-ray spectrometer

J. I. Trombka, S. W. Squyres, J. Bruckner, W. V. Boynton, R. C. Reedy, T. J. McCoy, P. Gorenstein, L. G. Evans, J. R. Arnold, R. D. Starr, L. R. Nittler, M. E. Murphy, I. Mikheeva, Jr McNutt, T. P. McClanahan, E. McCartney, J. O. Goldsten, R. E. Gold, S. R. Floyd, P. E. ClarkT. H. Burbine, J. S. Bhangoo, S. H. Bailey, M. Petaev

Research output: Contribution to journalArticle

102 Scopus citations

Abstract

We report major element composition ratios for regions of the asteroid 433 Eros imaged during two solar flares and quiet sun conditions during the period of May to July 2000. Low aluminum abundances for all regions argue against global differentiation of Eros. Magnesium/silicon, aluminum/silicon, calcium/silicon, and iron/silicon ratios are best interpreted as a relatively primitive, chondritic composition. Marked depletions in sulfur and possible aluminum and calcium depletions, relative to ordinary chondrites, may represent signatures of limited partial melting or impact volatilization.

Original languageEnglish (US)
Pages (from-to)2101-2105
Number of pages5
JournalScience
Volume289
Issue number5487
DOIs
StatePublished - Sep 22 2000
Externally publishedYes

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'The elemental composition of asteroid 433 Eros: Results of the NEAR-Shoemaker x-ray spectrometer'. Together they form a unique fingerprint.

  • Cite this

    Trombka, J. I., Squyres, S. W., Bruckner, J., Boynton, W. V., Reedy, R. C., McCoy, T. J., Gorenstein, P., Evans, L. G., Arnold, J. R., Starr, R. D., Nittler, L. R., Murphy, M. E., Mikheeva, I., McNutt, J., McClanahan, T. P., McCartney, E., Goldsten, J. O., Gold, R. E., Floyd, S. R., ... Petaev, M. (2000). The elemental composition of asteroid 433 Eros: Results of the NEAR-Shoemaker x-ray spectrometer. Science, 289(5487), 2101-2105. https://doi.org/10.1126/science.289.5487.2101