A superwind is an extremely dense wind emanating from
asymptotic giant branch
The asymptotic giant branch (AGB) is a region of the Hertzsprung–Russell diagram populated by evolved cool luminous stars. This is a period of stellar evolution undertaken by all low- to intermediate-mass stars (about 0.5 to 8 solar masses) lat ...
stars towards the end of their lives.
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References
Stellar evolution
Stellar phenomena
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