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Thermal Properties of a Dusty Plasma in the Presence of Driven Dust Acoustic Waves

In this paper, the thermal properties of a weakly coupled dc glow discharge dusty plasma with driven dust acoustic waves are investigated. Here, the waves are driven using a current modulation at a fixed frequency with varying amplitudes. Stereoscopic particle image velocimetry is used to measure the velocity space distribution of the dusty plasma. It is shown that, with increasing amplitude of the modulation, there is a corresponding increase in the measured kinetic temperature. In addition, there is an evidence of non-Maxwellian features in the velocity distribution.