Correlation between variable pulsation phase and SiO masers distribution

Miyako Oyadomari

Kagoshima University, Japan

We carried out VLBI observations of SiO v=2 and v=3 (J=1-0) masers toward 12 variable stars using VERA telescopes and NRO45m telescope. We suggest that distribution of v=2 and v=3 masers is correlated with variable pulsation phase.

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