Since many years we know that dust in the form of dusty-molecular torus is responsible for obscuration active galactic nuclei (AGN) at large viewing angles and thus classification AGN. Recently, gained some observational theoretical insight into geometry region role dynamics outflow failed winds. We will briefly touch on all these aspects, including our dust-based model (FRADO - Failed Radiativ...

A versatile table-top dusty plasma experimental device to study flow induced excitations of linear and nonlinear waves/structures in a complex plasma is presented. In this Π-shaped apparatus, a DC glow discharge plasma is produced between a disc shaped anode and a grounded long cathode tray by applying a high voltage DC in the background of a neutral gas (argon) and subsequently a dusty plasma ...

During the last decade decade there has been a continually growing interest to the complex dusty plasma physics [1], [2]. A dusty plasma is a low temperature plasma with immersed dust grains of micrometer size. These grains are quickly charged under plasma exposition and become by a component of the plasma. The main features of this component are the very large and variable electric charge (up ...

In dc glow discharge dusty plasmas, the formation of dust acoustic waves is a commonly observed phenomenon. Experiments in the dusty plasma experiment device produce naturally occurring dust acoustic waves with frequencies f N 5 to 25 Hz and phase velocities of Vph N 0.5 to 10 cm/s. Through the use of particle image velocimetry techniques, particle motion in the vicinity of the wavefronts is id...

Instability of high frequency wave, such as, Langmuir wave (LW) is studied using fluid model in collisional and streaming dusty plasma with dust charge fluctuation. In irradiated dusty plasma, dust charge fluctuation is considered to be due to the combined effect of LW perturbation and photoelectron emission. The piled up electrons on a dust grain due to LW perturbation can be swept out by phot...

Using Korteweg-de Vries (KdV) equation, solitons are investigated in a dusty plasma consisting of positive ion, negatively charged dust grain and Boltzmann distributed electron. Both compressive and rarefactive solitons are found to exist in the dusty plasma for fast and slow modes. Greater d Z ( d Z is the number of elementary charges residing on the dust grain) is found to yield higher amplit...

The numerous idealizations that are involved in the exact microscopic statistical description of complex (dusty) plasmas discussed detail. two prevailing approaches Klimontovich dusty reviewed a pedagogical manner. continuous phase space approximation is introduced, within which more rigorous treatment should collapse to heuristic treatment. plasma equations shown be identical, but there marked...

on the source of plasma density and electric field perturbations in pmse and pmwe regionspolar mesospheric summer/winter echoes (pmse/pmwe) are very strong radar echoes produced by ionospheric electron density fluctuations at half the radar wavelength. the main focus of this paper is the altitude range 80 to 90 km in summer and altitude range 65-86 km in winter in the polar mesosphere . this pa...