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Study of Nonlinear Waves in Astrophysical Quantum Plasmas

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dc.contributor.author Hossen, M. R.
dc.contributor.author Mamun, A. A.
dc.date.accessioned 2018-09-03T08:53:54Z
dc.date.accessioned 2019-05-27T09:57:15Z
dc.date.available 2018-09-03T08:53:54Z
dc.date.available 2019-05-27T09:57:15Z
dc.date.issued 2015-01-09
dc.identifier.uri http://hdl.handle.net/20.500.11948/3028
dc.description.abstract The nonlinear propagation of the electron-acoustic solitary waves (EASWs) in an unmagnetized, collisionless degenerate quantum plasma system has been investigated theoretically. Our considered model consisting of two distinct groups of electrons (one of inertial non-relativistic cold electrons and other of inertialess ultrarelativistic hot electrons) and positively charged static ions. The Korteweg-de Vries (K-dV) equation has been derived by employing the reductive perturbation method and numerically examined to identify the basic features (speed, amplitude, width, etc.) of EASWs. It is shown that only rarefactive solitary waves can propagate in such a quantum plasma system. It is found that the effect of degenerate pressure and number density of hot and cold electron fluids, and positively charged static ions, significantly modify the basic features of EASWs. It is also noted that the inertial cold electron fluid is the source of dispersion for EA waves and is responsible for the formation of solitary structures. The applications of this investigation in astrophysical compact objects (viz. non-rotating white dwarfs, neutron stars, etc.) are briefly discussed. Full Text Link: https://doi.org/10.1007/s13538-014-0297-4 en_US
dc.language.iso en en_US
dc.publisher Springer en_US
dc.subject Solitary waves en_US
dc.subject Astrophysical plasmas en_US
dc.subject Relativistic effect en_US
dc.title Study of Nonlinear Waves in Astrophysical Quantum Plasmas en_US
dc.type Article en_US


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