The effect of ion drag on the pulsational mode of gravitational collapse(PMGC)is investigated within the partially charged dusty plasma model by fluid dynamics.It is found that the ion drag force significantly enhance...The effect of ion drag on the pulsational mode of gravitational collapse(PMGC)is investigated within the partially charged dusty plasma model by fluid dynamics.It is found that the ion drag force significantly enhances the instability of the PMGC.In addition,it is shown that the instability of the PMGC is influenced by the ratio of the abundances of charged to neutral grains.These results can be relevant for the planetesimal formation in dark interstellar clouds.展开更多
基金the National Natural Science Foundation of China(Nos.11763006,11847023 and 11863004)。
文摘The effect of ion drag on the pulsational mode of gravitational collapse(PMGC)is investigated within the partially charged dusty plasma model by fluid dynamics.It is found that the ion drag force significantly enhances the instability of the PMGC.In addition,it is shown that the instability of the PMGC is influenced by the ratio of the abundances of charged to neutral grains.These results can be relevant for the planetesimal formation in dark interstellar clouds.
