SIMULATIONS OF STELLAR DISKS IN GALAXIES WITH NON-NEWTONIAN INTERACTIONS

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/39251

Title:	SIMULATIONS OF STELLAR DISKS IN GALAXIES WITH NON-NEWTONIAN INTERACTIONS
Authors:	GRIV,E;ZHYTNIKOV,VV
Contributors:	物理研究所
Keywords:	DARK-MATTER;ROTATION CURVES;SPIRAL GALAXIES;ANTI-GRAVITY;MASS DISCREPANCIES;MODIFIED DYNAMICS;ALTERNATIVES;STABILITY;CLUSTERS;FIELD
Date:	1995
Issue Date:	2010-07-08 14:09:47 (UTC+8)
Publisher:	中央大學
Abstract:	We describe gravitational N-body simulations to investigate whether various non-Newtonian interactions between the stars of a system could explain the flat rotational curves which are characteristic of actual isolated spiral galaxies. It is shown that replacing the standard Newtonian interaction by the models of Sanders (1984), Kuhn and Kruglyak (1987) and Milgrom (1983), no massive halo (or dark matter) is required to produce the flat rotational curves of the systems under consideration. All models also generate the exponential surface mass density distribution which is in agreement with that observed in disk-shaped galaxies. In relation to the spiral structure of galaxies, we present the evidence that the non-Newtonian interactions can reproduce the multiple armed patterns in stellar disks without dark matter.
Relation:	ASTROPHYSICS AND SPACE SCIENCE
Appears in Collections:	[Graduate Institute of Physics] journal & Dissertation

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