Periodic flares in two 6.7GHz methanol masers

Periodicity in the 6.7GHz methanol maser sources is a rare phenomenon discovered during long-term monitoring programs. Understanding underlying processes leading to periodic...6.7GHz甲醇脉泽源（6.7GHz methanol maser sources）的周期性是一种在长期监测项目中发现的罕见现象，对引发其周期性变化的潜在物理过程的探究...