Studies on soliton energy at critical and noncritical densities of negative ions in an inhomogeneous magnetized warm plasma
- Plasma Waves and Particle Acceleration Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016 (India)
Considering an inhomogeneous plasma having finite-temperature negative and positive ions, and the isothermal electrons in the presence of an external magnetic field, the solitons at noncritical and critical densities of the negative ions are studied through Korteweg-deVries (KdV) and modified Korteweg-deVries (mKdV) equations, respectively. The compressive (rarefactive) KdV solitons are found to propagate when the negative ion concentration is less (greater) than the critical density of the negative ions. At the critical density, both the compressive and the rarefactive solitons of equal amplitudes are found to occur. The energies of the compressive KdV soliton and the mKdV solitons are found to increase and that of the rarefactive KdV soliton is found to decrease with the negative ion density. Soliton energy for both the KdV and the mKdV solitons gets lowered under the effect of stronger magnetic field. The effect of ion temperature is to increase the energy of the compressive KdV soliton, whereas the energy of the rarefactive KdV soliton as well as of the mKdV solitons gets decreased. The variation of the energy with the obliqueness of the magnetic field is different for the KdV and the mKdV solitons.
- OSTI ID:
- 21069875
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 11 Vol. 14; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Modified Korteweg--deVries solitons in a warm plasma with negative ions
Modified Korteweg-deVries soliton evolution at critical density of negative ions in an inhomogeneous magnetized cold plasma
Reflection of ion acoustic solitons in a plasma having negative ions
Journal Article
·
Wed Feb 28 23:00:00 EST 1990
· Physics of Fluids B; (USA)
·
OSTI ID:7166013
Modified Korteweg-deVries soliton evolution at critical density of negative ions in an inhomogeneous magnetized cold plasma
Journal Article
·
Fri Jun 15 00:00:00 EDT 2007
· Physics of Plasmas
·
OSTI ID:20975108
Reflection of ion acoustic solitons in a plasma having negative ions
Journal Article
·
Thu Oct 31 23:00:00 EST 1996
· Physics of Plasmas
·
OSTI ID:388222