Crystallization experiments on amorphous magnesium silicate. II. Effect of stacking faults on infrared spectra of enstatite

K. Murata, H. Chihara, C. Koike, T. Noguchi, T. Takakura, Y. Imai, A. Tsuchiyama

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We carried out experiments of low-temperature infrared spectroscopy and transmission electron microscopy of enstatite (MgSiO3) synthesized by heating of amorphous magnesium silicate. There is a discrepancy between the infrared feature of enstatite obtained in this experiment and that of fine powdered single crystals. This reflects stacking disorder of enstatite. We show that circumstellar dust emission of enstatite is similar to the infrared feature measured in this experiment. This result strongly suggests that circumstellar enstatite has abundant stacking faults and is different from the single crystal.

Original languageEnglish
Pages (from-to)1903-1906
Number of pages4
JournalAstrophysical Journal
Volume698
Issue number2
DOIs
Publication statusPublished - Jun 20 2009

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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