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Comments on "Perspectives on Galactic Dynamics via General Relativity"
D. Vogt, P. S. Letelier
In this comment we question some arguments presented in astro-ph/0512048 to refuse the presence of an singular mass surface layer. In particular, incorrect expressions are used for…
Presence of exotic matter in the Cooperstock and Tieu galaxy model
D. Vogt, P. S. Letelier
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…
Relativistic Models of Galaxies
D. Vogt, P. S. Letelier
A special form of the isotropic metric in cylindrical coordinates is used to construct what may be interpreted as the General Relativistic versions of some wellknown potential-dens…
New Models of General Relativistic Static Thick Disks
D. Vogt, P. S. Letelier
New families of exact general relativistic thick disks are constructed using the ``displace, cut, fill and reflect'' method. A class of functions used to ``fill'' the disks is deri…