The elemental composition of asteroid 433 eros: results of the NEAR-shoemaker X-ray spectrometer

  title={The elemental composition of asteroid 433 eros: results of the NEAR-shoemaker X-ray spectrometer},
  author={Trombka and Squyres and Bruckner and Boynton and Reedy and Mccoy and Gorenstein and Evans and Arnold and Starr and Nittler and Murphy and Mikheeva and Mcnutt and Mcclanahan and McCartney and Goldsten and Gold and Floyd and Clark and Burbine and Bhangoo and Bailey and Petaev},
  volume={289 5487},
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… Expand
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