Abstracts for fall meeting of the Japanese Society for Planetary Science
Abstracts 2007 Fall meeting of the Japanese Society for Planetary Sciences
Session ID : 333
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Host: The Japanese Society for Planetary Sciences: Local Organizing Committee for 2007 Fall Meeting

Oral Session 12: Intersteller Dusts and STARDUST
Sep. 27, 15:40-16:57
Anisotropic evaporation of circumstellar forsterite: dependance on temparature and hydrogen pressure
*Aki Takigawa, Shogo Tachibana, Hiroko Nagahara, Kazuhito Ozawa, Masanori Yokoyama
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Abstract
Evaporation experiments of forsterite in hydrogen gas were carried out in order to understand shape change of forsterite particles due to anisotropy of evaporation and its effect on infrared spectroscopy. The infrared spectrum of forsterite in HD100546 (a PP-disk) can be explained by a disk-shaped forsterite elongated to the a- and b- axes, and our experimental results indicate that such grains can be formed by anisotoropy evaporation of forsterite in hydrogen gas.
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© 2007 The Japanese Society for Planetary Sciences
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