Browsing by Author "Hafiza Rizwana Kausar"

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    Hot plasma modes across reissner-nordstrom-de sitter horizon in a veselago medium
    (Canadian Journal of Physics, 2015) Ifra Noureen; Hafiza Rizwana Kausar
    We investigate wave attributes of hot plasma around a Reissner–Nördstrom–de Sitter (RN-dS) metric in a Veselago medium. A perturbation scheme is implemented on general relativistic magnetohydrodynamical (GRMHD) equations that are further used for Fourier analysis. The linearly perturbed Fourier-analyzed GRMHD equations depict the dispersion of hot plasma waves. It is found that inclusion of charge in de Sitter space greatly affects the wave dispersion. A comparison of wave properties is presented, and results reassert the presence of the Veselago medium.