LATITUDINAL DEPENDENCE OF RADIATIVELY DRIVEN MASS LOSS FROM RAPIDLY ROTATING HOT-STARS

摘要: We investigate the latitudinal variation of radiatively driven mass loss from rapidly rotating hot-stars. Previous analyses have assumed a uniformly bright stellar surface and concluded that wind flux density should increase with increased centrifugal force toward equator. In contrast, we show here gravity darkening in which radiation scales effective (centrifugally reduced) leads to dramatically different morphology, strongest now occurring relatively poles. also review recent work indicates nonradial (poleward) components line-driving such winds can effectively inhibit equatorward deflection needed form an equatorial wind-compressed disk. Finally, examine bistability model, sufficiently strong jump driving parameters can, principle, overcome effect reduced radiative flux, thus still allowing moderate enhancements equatorial, zone wind.