Resistive tearing mode instability in partially ionized dusty plasmas

The resistive tearing mode instability in a partially ionized, self-gravitating dusty magnetoplasma is theoretically investigated, taking into account the dust grain dynamics. It is found that the latter effect leads to a growth rate that differs significantly from that of the classical case of an electron-ion plasma. This modification of the tearing instability may be responsible for magnetic field line reconnection in astrophysical environments