Scholars@Duke publication: The Chandrayaan-1 X-ray Spectrometer: First results

The Chandrayaan-1 X-ray Spectrometer: First results

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Weider, SZ; Kellett, BJ; Swinyard, BM; Crawford, IA; Joy, KH; Grande, M; Howe, CJ; Huovelin, J; Narendranath, S; Alha, L; Anand, M; Carter, JA ...

Published in: Planetary and Space Science

January 1, 2012

Published version (DOI)

We present X-ray fluorescence observations of the lunar surface, made by the Chandrayaan-1 X-ray Spectrometer during two solar flare events early in the mission (12th December 2008 and 10th January 2009). Modelling of the X-ray spectra with an abundance algorithm allows quantitative estimates of the MgO/SiO 2 and Al 2O 3/SiO 2 ratios to be made for the two regions, which are in mainly basaltic areas of the lunar nearside. One of these ground tracks includes the Apollo 14 landing site on the Fra Mauro Formation. Within the 1σ errors provided, the results are inside the range of basaltic samples from the Apollo and Luna collections. The Apollo 14 soil composition is in agreement with the results from the January flare at the 1σ uncertainty level. Discrepancies are observed between our results and compositions derived for the same areas by the Lunar Prospector gamma-ray spectrometer; some possible reasons for this are discussed. © 2011 Elsevier Ltd. All rights reserved.

Duke Scholars

Author David R. Smith Electrical and Computer Engineering

Published In

Planetary and Space Science

DOI

10.1016/j.pss.2011.08.014

ISSN

0032-0633

Publication Date

January 1, 2012

Volume

Issue

Start / End Page

217 / 228

Related Subject Headings

Astronomy & Astrophysics
5102 Atomic, molecular and optical physics
5101 Astronomical sciences
3706 Geophysics
0201 Astronomical and Space Sciences

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MLA

NLM

Weider, S. Z., Kellett, B. J., Swinyard, B. M., Crawford, I. A., Joy, K. H., Grande, M., … Wieczorek, M. (2012). The Chandrayaan-1 X-ray Spectrometer: First results. In Planetary and Space Science (Vol. 60, pp. 217–228). https://doi.org/10.1016/j.pss.2011.08.014

Weider, S. Z., B. J. Kellett, B. M. Swinyard, I. A. Crawford, K. H. Joy, M. Grande, C. J. Howe, et al. “The Chandrayaan-1 X-ray Spectrometer: First results.” In Planetary and Space Science, 60:217–28, 2012. https://doi.org/10.1016/j.pss.2011.08.014.

Weider SZ, Kellett BJ, Swinyard BM, Crawford IA, Joy KH, Grande M, et al. The Chandrayaan-1 X-ray Spectrometer: First results. In: Planetary and Space Science. 2012. p. 217–28.

Weider, S. Z., et al. “The Chandrayaan-1 X-ray Spectrometer: First results.” Planetary and Space Science, vol. 60, no. 1, 2012, pp. 217–28. Scopus, doi:10.1016/j.pss.2011.08.014.

Weider SZ, Kellett BJ, Swinyard BM, Crawford IA, Joy KH, Grande M, Howe CJ, Huovelin J, Narendranath S, Alha L, Anand M, Athiray PS, Bhandari N, Carter JA, Cook AC, Duston LC, Fernandes VA, Gasnault O, Goswami JN, Gow JPD, Holland AD, Koschny D, Lawrence DJ, Maddison BJ, Maurice S, McKay DJ, Okada T, Pieters C, Rothery DA, Russell SS, Shrivastava A, Smith DR, Wieczorek M. The Chandrayaan-1 X-ray Spectrometer: First results. Planetary and Space Science. 2012. p. 217–228.

Published In

Planetary and Space Science

DOI

10.1016/j.pss.2011.08.014

ISSN

0032-0633

Publication Date

January 1, 2012

Volume

Issue

Start / End Page

217 / 228

Related Subject Headings

Astronomy & Astrophysics
5102 Atomic, molecular and optical physics
5101 Astronomical sciences
3706 Geophysics
0201 Astronomical and Space Sciences