Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012ap%26ss.337..629m&link_type=abstract
Astrophysics and Space Science, Volume 337, Issue 2, pp.629-635
Astronomy and Astrophysics
Astrophysics
Dissipative Systems, Electron-Positron-Ion Plasmas, Quantum Plasmas, Magnetized Plasmas
Scientific paper
Nonlinear electrostatic waves in dense dissipative magnetized electron-positron-ion (e-p-i) plasmas are investigated employing the quantum hydrodynamic model. In this regard, Zakharov Kuznetsov Burgers (ZKB) equation is derived in dense plasmas using the small amplitude perturbation expansion method. It is observed that obliqueness, positron concentration, kinematic viscosity, and the ambient magnetic field significantly alter the structure of nonlinear quantum ion acoustic waves in dense dissipative e-p-i magnetoplasmas. The present study may be useful to understand the nonlinear propagation characteristics of electrostatic shock structures in dense astrophysical systems where the quantum effects are expected to dominate.
Masood Waqas
Rizvi H.
Siddiq M.
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