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Positron acoustic solitary waves interaction in a four-component space plasma |
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| Authors: | E F El-Shamy W F El-Taibany E K El-Shewy K H El-Shorbagy |
| Institution: | 1. Department of Physics, College of Science, King Khalid University, Abha, P.O. 9004, Kingdom of Saudi Arabia 5. Department of Physics, Faculty of Science, Damietta Branch, Mansoura University, New Damietta, P.O. 34517, Egypt 2. Department of Physics, College of Science for Girls in Abha, King Khalid University, Abha, P.O. 960, Kingdom of Saudi Arabia 3. Department of Physics, Faculty of Science, Mansoura University, Mansoura, Egypt 7. Department of Physics, Science and Arts College in Al-Rass, Qassim University, Qassim, Kingdom of Saudi Arabia 4. Department of Mathematics, Faculty of Science, King AbdulAziz University, Jeddah, Kingdom of Saudi Arabia 6. Plasma Physics and Nuclear Fusion Department, Nuclear Research Center, Atomic Energy Authority, Cairo, Egypt |
| Abstract: | The characteristics of the head-on collision (HOC) between two positron acoustic solitary waves (PASWs) in a four component electron-positron-ion (EPI) space plasma have been investigated theoretically, using the extended Poincaré-Lighthill-Kuo (PLK) method. The analytical phase shifts after the collision of the two solitary waves occurs are derived. Numerically, the influences of the cold/hot positron parameters on the phase shifts are explicitly investigated. The present theory is applied to analyze the formation and the interaction of localized coherent PASWs structures in space plasmas (pulsar environments). |
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