Abstract
Acoustic solitons are investigated in electron-positron plasmas containing equal hot and cool components of both species. The hot components are isothermal Boltzmann distributed, the cool constituents are modelled by adiabatic fluids. The equations are integrated exactly in terms of a Sagdeev potential. Solitons are shown to be possible, but no double layers, due to the symmetry in the model. Bearing in mind the constraints imposed by the Boltzmann assumption, small amplitude solitons only are found. Such findings are relevant for different kinds of astrophysical plasmas, as well as for other types of similar acoustic solitons.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Baboolal, S., Bharuthram, R. and Hellberg, M.A.: 1988,J. Plasma Phys. 40, 163–178.
Baboolal, S., Bharuthram, R. and Hellberg, M.A.: 1990,J. Plasma Phys. 44, 1–23.
Beskin, V.S., Gurevich, A.V. and Istomin, Ya.N.: 1983,Soviet Phys. JETP 58, 235–253.
Bharuthram, R.: 1992,Astrophys. Space Sci. 189, 213–222.
Bharuthram, R. and Shukla, P.K.: 1986,Phys. Fluids 29, 3214–3218.
Chatterjee, P. and Roychoudhury, R.: 1995,J. Plasma Phys. 53, 25–29.
Gurevich, A.V. and Istomin, Ya.N.: 1985,Soviet Phys. JETP 62, 1–11.
Lominadze, J.G., Machabeli, G.Z. and Usov, V.V.: 1983,Astrophys. Space Sci. 90, 19–43.
Lominadze, J.G., Melikidze, G.I. and Pataraya, A.D.: 1984,Invited Papers 1984 Intern. Conf. Plasma Phys. 2, 1043–1066, (Lausanne, CRPP).
Mace, R.L., Baboolal, S., Bharuthram, R. and Hellberg, M.A.: 1991,J. Plasma Phys. 45, 323–338.
Mace, R.L. and Hellberg, M.A.: 1993a, in: Schrittwieser, R. (ed.),Double Layers and Other Nonlinear Potential Structures in Plasmas, World Scientific, Singapore 1993, 370–375.
Mace, R.L. and Hellberg, M.A.: 1993b,Planet. Space Sci. 41, 235–244.
Pillay, R. and Bharuthram, R.: 1992,Astrophys. Space Sci. 198, 85–93.
Rice, W.K.M., Hellberg, M.A., Mace, R.L. and Baboolal, S.: 1992,Europhysics Conf. Abstr. 16C, 1819–1822.
Rice, W.K.M., Hellberg, M.A., Mace, R.L. and Baboolal, S.: 1993a,Phys. Lett. A 174, 416–420.
Rice, W.K.M., Hellberg, M.A., Baboolal, S., Mace, R.L. and Gray, G.: 1993b, in: Schrittwieser, R. (ed.),Double Layers and Other Nonlinear Potential Structures in Plasmas, World Scientific, Singapore 1993, 401–405.
Sturrock, P.A.: 1971,Astrophys. J. 164, 529–556.
Watanabe, S.: 1984,J. Phys. Soc. Japan 53, 950–956.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Verheest, F., Hellberg, M.A., Gray, G.J. et al. Electrostatic solitons in multispecies electron-positron plasmas. Astrophys Space Sci 239, 125–139 (1996). https://doi.org/10.1007/BF00653773
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00653773