History of two mass loss processes in VY CMa. Fast outflows carving older ejecta

G. Quintana-Lacaci, L. Velilla-Prieto, M. Agúndez +4

Red supergiant stars (RSGs, Minit = 10-40Msun) are known to eject large amounts of material, as much as half of their initial mass during this evolutionary phase. However, the proc…