Nucleus-acoustic solitary waves in self-gravitating degenerate quantum plasmas

doi:10.1088/1674-1056/27/4/040402

Abstract Nucleus-acoustic (NA) solitary waves (SWs) propagating in a self-gravitating degenerate quantum plasma (SDQP) system (containing non-relativistically degenerate heavy and light nuclei, and non-/ultra-relativistically degenerate electrons) have been theoretically investigated. The modified Korteweg-de Vries (mK-dV) equation has been derived for both planar and non-planar geometry by employing the reductive perturbation technique. It is shown that the NA SWs exist with positive (negative) electrostatic (self-gravitational) potential. It is also observed that the effects of non-/ultra-relativistically degenerate electron pressure, dynamics of non-relativistically light nuclei, spherical geometry, etc. significantly modify the basic features (e.g., amplitude, width, speed, etc.) of the NA SWs. The applications of our results, which are relevant to astrophysical compact objects, like white dwarfs and neutron stars, are briefly discussed.

Keywords: self-gravitational potential solitary waves

Received: 24 October 2017
Revised: 23 December 2017
Accepted manuscript online:

PACS:	04.40.-b	(Self-gravitating systems; continuous media and classical fields in curved spacetime)
	05.45.Yv	(Solitons)

Corresponding Authors: D M S Zaman
E-mail: saadzamanshaon@gmail.com

Cite this article:

D M S Zaman, M Amina, P R Dip, A A Mamun Nucleus-acoustic solitary waves in self-gravitating degenerate quantum plasmas 2018 Chin. Phys. B 27 040402

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