Effect of ion drag on a pulsational mode of gravitational collapse

Wei-Heng Yang(杨伟恒),Hui Chen(陈辉),San-Qiu Liu(刘三秋)

Figure 1. The normalized real part of frequency ${{\rm{\Omega }}}_{{\rm{r}}}\equiv {\omega }_{{\rm{r}}}/{\omega }_{{\rm{J}}}$ versus the normalized wave-number $K\equiv k/{k}_{{\rm{J}}}$ with different η in the case of ${\nu }_{\mathrm{cn}}\to 0$, ${\nu }_{\mathrm{id}}\to 0$, where η = 0.01, 0.02, 0.03 for the blue dashed line, green solid line and yellow dotted line, respectively.