TY - JOUR
T1 - Crystallization experiments on amorphous magnesium silicate. II. Effect of stacking faults on infrared spectra of enstatite
AU - Murata, K.
AU - Chihara, H.
AU - Koike, C.
AU - Noguchi, T.
AU - Takakura, T.
AU - Imai, Y.
AU - Tsuchiyama, A.
N1 - Publisher Copyright:
© 2009 The American Astronomical Society. All rights reserved. Printed in the U.S.A.
PY - 2009/6/20
Y1 - 2009/6/20
N2 - 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.
AB - 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.
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U2 - 10.1088/0004-637X/698/2/1903
DO - 10.1088/0004-637X/698/2/1903
M3 - Article
AN - SCOPUS:77956385354
SN - 0004-637X
VL - 698
SP - 1903
EP - 1906
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
ER -