Journal
ASTRONOMY & ASTROPHYSICS
Volume 429, Issue 1, Pages 205-208Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361:20041365
Keywords
astrochemistry; methods : laboratory; stars : AGB and post-AGB; circumstellar matter; dust, extinction
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A novel method for producing MgO and SiO2 smokes was developed. Mg-bearing silicate grain formation using the coalescence and growth of MgO and SiO2 grains was carried out in our laboratory. It becomes evident that single and poly crystalline Mg2SiO4 (forsterite) and amorphous Mg-bearing silicate grains can be produced by the coalescence and growth of MgO and SiO2 grains. This result suggests that the observed crystalline Mg2SiO4 grains and amorphous Mg-bearing silicate particles in Red Super Giant (RSG), Asymptotic Giant Branch (AGB), post-AGB and planetary nebula (PNe) could be produced by the coalescence and growth of MgO and SiO2 grains.
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