Presence of exotic matter in the Cooperstock and Tieu galaxy model

Details Presence of exotic matter in the Cooperstock and Tieu galaxy model Presence of exotic matter in the Cooperstock and Tieu galaxy model

2005-10-26

arxiv.org/abs/astro-ph/0510750v1

Astronomy and Astrophysics

Astrophysics

4 pages

Scientific paper

We analyze the presence of an additional singular thin disk in the recent
General Relativistic model of galactic gravitational field proposed by
Cooperstock and Tieu. The physical variables of the disk's energy-momentum
tensor are calculated. We show that the disk is made of exotic matter, either
cosmic strings or struts with negative energy density.

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