Author/Authors :
Michael, Manesh School of Pure and Applied Physics - Mahatma Gandhi University - Priyadarshini Hills - Kottayam 686 560 - Kerala, India , Willington, Neethu T. Department of Physics - C. M. S. College - Kottayam 686001 - Kerala, India , Jayakumar, Neethu School of Pure and Applied Physics - Mahatma Gandhi University - Priyadarshini Hills - Kottayam 686 560 - Kerala, India , Sebastian, Sijo School of Pure and Applied Physics - Mahatma Gandhi University - Priyadarshini Hills - Kottayam 686 560 - Kerala, India , Sreekala, G School of Pure and Applied Physics - Mahatma Gandhi University - Priyadarshini Hills - Kottayam 686 560 - Kerala, India , Venugopal, Chandu School of Pure and Applied Physics - Mahatma Gandhi University - Priyadarshini Hills - Kottayam 686 560 - Kerala, India
Abstract :
We investigate the existence of ion-acoustic shock waves in a five component cometary plasma consisting of positively and negatively charged oxygen ions,
kappa described hydrogen ions, hot solar electrons, and
slightly colder cometary electrons. The KdVB equation has
been derived for the system, and its solution plotted for
different kappa values, oxygen ion densities, as well as the
temperature ratios for the ions. It is found that the amplitude
of the shock wave decreases with increasing kappa
values. The strength of the shock profile decreases with
increasing temperatures of the positively charged oxygen
ions and densities of negatively charged oxygen ions.
Keywords :
Cometary plasma , Ion-acoustic solitary wave , Shock wave , KdVB equation
