Volume 422, Number 3, August II 2004
|Page(s)||975 - 979|
|Section||Interstellar and circumstellar matter|
|Published online||16 July 2004|
Direct observation of the metamorphism of silicon oxide grains
Department of Nanophysics in Frontier Projects, Ritsumeikan University, Kusatsu-shi, Shiga 525-8577, Japan e-mail: firstname.lastname@example.org
Accepted: 23 March 2004
Experimental studies on the metamorphism of SiOx grains under heating at 10-6 Pa have been conducted using a high-resolution transmission electron microscope. Si crystallites were predominantly grown at 500 to 700 °C in SiOx grains. The Si crystallites disappeared at 800 °C and evaporated as the SiO phase.
Key words: astrochemistry / acceleration of particles / method: laboratory / Stars: AGB and post-AGB / stars: circumstellar matter / ISM: dust, extinction
© ESO, 2004
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