Asymptotic Giant Branch (AGB) Stars

Stars on the Asymptotic Giant Branch, which represents a late stage of stellar evolution that all stars with initial masses < 8 Msun go through. At this late stage of stellar evolution, gas and dust are lifted off the stellar surface by massive winds that transfer material to the interstellar medium. Mass loss rates range from ~10-8 to 10-4 Msun per year.


Image source: http://outreach.atnf.csiro.au/education/senior/astrophysics/stellarevolution_postmain.html.