Bottom-up dust nucleation theory in oxygen-rich evolved stars II. Magnesium and calcium aluminate clusters

David Gobrecht, S. Rasoul Hashemi, John M. C. Plane +3

Spinel (MgAl${}_2$O${}_4$) and krotite (CaAl${}_2$O${}_4$) are alternative candidates to alumina (Al${}_2$O${}_3$) as primary dust condensates in the atmospheres of oxygen-rich evolved…