Multi-dimensional instability of electrostatic solitary waves in ultra-relativistic degenerate electron-positron-ion plasmas

• Autorzy: M. Masum Haider , Suraya Akter , Syed Duha , Abdullah Mamun
• Języki publikacji: EN

Abstrakty

EN

The basic features and multi-dimensional instability of electrostatic (EA) solitary waves propagating in an ultra-relativistic degenerate dense magnetized plasma (containing inertia-less electrons, inertia-less positrons, and inertial ions) have been theoretically investigated by reductive perturbation method and small-k perturbation expansion technique. The Zakharov-Kuznetsov (ZK) equation has been derived, and its numerical solutions for some special cases have been analyzed to identify the basic features (viz. amplitude, width, instability, etc.) of these electrostatic solitary structures. The implications of our results in some compact astrophysical objects, particularly white dwarfs and neutron stars, are briefly discussed.

Słowa kluczowe

EN

electrostatic solitary waves; degenerate plasma; ultra-relativistic limits; Zakharov-Kuznetsov equation

• Czasopismo: Open Physics
• Rocznik: 2012
• Tom: 10
• Numer: 5
• Strony: 1168-1177

Daty

wydano

2012-10-01

online

2012-11-21

Twórcy

autor

M. Masum Haider,

autor

Suraya Akter,

autor

Syed Duha

• Department of Physics, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh

autor

Abdullah Mamun

• Department of Physics, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh

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Identyfikatory

DOI

10.2478/s11534-012-0085-0