Comparative analysis of dust-acoustic shock waves in nonextensive dusty plasma under gravity and microgravity conditions with adiabatic and nonadiabatic charge variations.

Abstract

The current study examines, using a nonextensive statistical framework satisfying the H-theorem constraint 0≤q≤2, the dynamics of dust-acoustic shock waves in complex plasmas under the influence of both gravity and microgravity within adiabatic and nonadiabatic fluctuating charge. The results highlight the significant role of gravity in enhancing dissipation and breaking potential symmetry, while microgravity allows for sustained oscillations and more stable electrostatic structures. The impact of the nonextensive parameter q reveals that higher values lead to stronger electrostatic interactions and prolonged wave propagation. Additionally, variations in dust grain size, charge relaxation time, and electron density influence wave stability and dissipation. The findings provide valuable insights into plasma behavior, with implications for both laboratory experiments and microgravity environments such as the PK-3 Plus laboratory on the International Space Station.