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Dynamic atmospheres and winds of cool luminous giants
2016
Astronomy and Astrophysics
High spatial resolution techniques have given valuable insights into the mass loss mechanism of AGB stars, which presumably involves a combination of atmospheric levitation by pulsation-induced shock waves and radiation pressure on dust. Observations indicate that Al_2O_3 condenses at distances of about 2 stellar radii or less, prior to the formation of silicates. Al_2O_3 grains are therefore prime candidates for producing the scattered light observed in the close vicinity of several M-type AGB
doi:10.1051/0004-6361/201628424
fatcat:ib4hcai5uffplay27ehc3e2xwu