Nucleus-acoustic solitary waves in thermally degenerate magnetized quantum plasma*

A thermally degenerate magneto-rotating quantum (TDMRQ) plasma having ultra-relativistic or non-relativistic thermally degenerate inertialess electrons, non-relativistic thermally degenerate inertial light nucleus and stationary heavy nucleus has been considered. A Korteweg de Vries equation has been derived by using reductive perturbation method to analyze the basic features (i.e., height and width) of degenerate pressure driven nucleus-acoustic solitary waves (DPDNASWs) in a TDMRQ plasma. It has been observed that the temperature of electron and magnetic field modify the amplitude and width of the DPDNASWs. The thermally degenerate plasma model under consideration is applicable not only to all cold white dwarfs, but also to many hot white dwarfs, such as DQ white dwarfs, white dwarf H1504+65, white dwarf PG 0948+534, etc.