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. Clark; T. H. Burbine; J. S. Bhangoo; S. H. Bailey; M. Petaev

doi:10.1126/science.289.5487.2101

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

Lunar and Planetary Lab

Research output: Contribution to journal › Article › peer-review

117 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 language	English (US)
Pages (from-to)	2101-2105
Number of pages	5
Journal	Science
Volume	289
Issue number	5487
DOIs	https://doi.org/10.1126/science.289.5487.2101
State	Published - Sep 22 2000

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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

Trombka, JI, Squyres, SW, Bruckner, J, Boynton, WV, Reedy, RC, McCoy, TJ, Gorenstein, P, Evans, LG, Arnold, JR, Starr, RD, Nittler, LR, Murphy, ME, Mikheeva, I, McNutt, J, McClanahan, TP, McCartney, E, Goldsten, JO, Gold, RE, Floyd, SR, Clark, PE, Burbine, TH, Bhangoo, JS, Bailey, SH & Petaev, M 2000, 'The elemental composition of asteroid 433 Eros: Results of the NEAR-Shoemaker x-ray spectrometer', Science, vol. 289, no. 5487, pp. 2101-2105. https://doi.org/10.1126/science.289.5487.2101

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

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.",

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

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doi = "10.1126/science.289.5487.2101",

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T1 - The elemental composition of asteroid 433 Eros

T2 - Results of the NEAR-Shoemaker x-ray spectrometer

AU - Trombka, J. I.

AU - Squyres, S. W.

AU - Bruckner, J.

AU - Boynton, W. V.

AU - Reedy, R. C.

AU - McCoy, T. J.

AU - Gorenstein, P.

AU - Evans, L. G.

AU - Arnold, J. R.

AU - Starr, R. D.

AU - Nittler, L. R.

AU - Murphy, M. E.

AU - Mikheeva, I.

AU - McNutt, Jr

AU - McClanahan, T. P.

AU - McCartney, E.

AU - Goldsten, J. O.

AU - Gold, R. E.

AU - Floyd, S. R.

AU - Clark, P. E.

AU - Burbine, T. H.

AU - Bhangoo, J. S.

AU - Bailey, S. H.

AU - Petaev, M.

PY - 2000/9/22

Y1 - 2000/9/22

N2 - 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.

AB - 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.

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EP - 2105

JO - Science

JF - Science

IS - 5487

ER -

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

Abstract

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