Self-consistent charge dynamics in magnetized dusty plasmas: Low-frequency electrostatic modes

AbstractThe dust acoustic solitary waves are theoretically investigated in dusty plasmas for different cases of with and without density gradients. These low-frequency solitary waves are studied using appropriate Korteweg–de Vries equations obtained using relevant stretched coordinates. The soliton solutions in homogeneous plasma, weakly inhomogeneous plasma and strongly inhomogeneous plasma, are thoroughly investigated for studying the effect of different parameters like dust charge and density of all the plasma species on the soliton profiles. The combination of the dust charge with its number density changes the dynamics of the solitons and that is further affected by the number density of the hot ion with respect to the cold ions.

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Self-Consistent Kinetic Approach for Low Frequency and Quasi-static Electromagnetic Perturbations in Magnetic-Mirror Confined Plasmas

Transport and Energy Conversion in the Heliosphere - Lecture Notes in Physics ◽

10.1007/3-540-45166-8_5 ◽

2000 ◽

pp. 165-214 ◽

Cited By ~ 1

Author(s):

René Pellat ◽

Olivier Le Contel ◽

Alain Roux ◽

Sylvaine Perraut ◽

Omar Hurricane ◽

...

Keyword(s):

Low Frequency ◽

Magnetic Mirror ◽

Kinetic Approach ◽

Confined Plasmas ◽

Self Consistent ◽

Electromagnetic Perturbations

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Low-frequency electrostatic instabilities in strongly coupled dusty plasmas

IEEE Transactions on Plasma Science ◽

10.1109/27.923699 ◽

2001 ◽

Vol 29 (2) ◽

pp. 226-230 ◽

Cited By ~ 3

Author(s):

Baisong Xie ◽

Zhaoyang Chen ◽

M.Y. Yu

Keyword(s):

Low Frequency ◽

Dusty Plasmas ◽

Strongly Coupled

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The duty cycle of radio galaxies revealed by LOFAR: remnant and restarted radio source populations in the Lockman Hole

Monthly Notices of the Royal Astronomical Society ◽

10.1093/mnras/staa1172 ◽

2020 ◽

Vol 496 (2) ◽

pp. 1706-1717 ◽

Cited By ~ 2

Author(s):

Stanislav S Shabala ◽

Nika Jurlin ◽

Raffaella Morganti ◽

Marisa Brienza ◽

Martin J Hardcastle ◽

...

Keyword(s):

Active Galactic Nuclei ◽

Radio Source ◽

Low Frequency ◽

Galactic Nuclei ◽

Radio Jets ◽

Modelling Analysis ◽

Self Consistent ◽

Large Populations ◽

Source Populations ◽

Lockman Hole

ABSTRACT Feedback from radio jets associated with active galactic nuclei (AGNs) plays a profound role in the evolution of galaxies. Kinetic power of these radio jets appears to show temporal variation, but the mechanism(s) responsible for this process are not yet clear. Recently, the LOw Frequency ARray (LOFAR) has uncovered large populations of active, remnant, and restarted radio jet populations. By focusing on LOFAR data in the Lockman Hole, in this work we use the Radio AGNs in Semi-Analytic Environments (RAiSE) dynamical model to present the first self-consistent modelling analysis of active, remnant, and restarted radio source populations. Consistent with other recent work, our models predict that remnant radio lobes fade quickly. Any high (>10 per cent) observed fraction of remnant and restarted sources therefore requires a dominant population of short-lived jets. We speculate that this could plausibly be provided by feedback-regulated accretion.

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