On continuum driven winds from rotating stars

摘要: We study the dynamics of continuum driven winds from rotating stars, and develop an approximate analytical model. then discuss evolution stellar angular momentum, show that just above Eddington limit, are sufficiently concentrated towards poles to spin up star. A twin-lobe structure ejected nebula is seen be a generic consequence critical rotation. find if pressure in such stars dominated by radiation, equatorial ejection mass will occur during eruptions. These results applied {\eta}-Carinae. it began its life with high enough present day wind could have star rotation, dominant mode loss. shape size Homunculus nebula, as given our model, agree recent observations. Moreover, contraction expected due sudden increase luminosity at onset Great Eruption explains "skirt" well.