Exact regular models for static relativistic stars

Paklin, N. N.

doi:10.1007/bf00559605

Cited by 2 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Later this was independently rederived by Adams and Cohen [9], and Kuchowicz [10] [94]. Later this was rediscovered by Korkina [12], Durgapal [13] (Durg III [94]), and Palkin [179] but surprisingly none of those works mentioned Heintzmann's work. 4 Durg IV and Durg V according to [94].…”

Section: Anisotropic Charged Stellar Modelsmentioning

confidence: 99%

Some new Wyman–Leibovitz–Adler type static relativistic charged anisotropic fluid spheres compatible to self-bound stellar modeling

Murad

Fatema

2015

Eur. Phys. J. C

View full text Add to dashboard Cite

In this work some families of relativistic anisotropic charged fluid spheres have been obtained by solving the Einstein-Maxwell field equations with a preferred form of one of the metric potentials, and suitable forms of electric charge distribution and pressure anisotropy functions. The resulting equation of state (EOS) of the matter distribution has been obtained. Physical analysis shows that the relativistic stellar structure for the matter distribution considered in this work may reasonably model an electrically charged compact star whose energy density associated with the electric fields is on the same order of magnitude as the energy density of fluid matter itself (e.g., electrically charged bare strange stars). Furthermore these models permit a simple method of systematically fixing bounds on the maximum possible mass of cold compact electrically charged self-bound stars. It has been demonstrated, numerically, that the maximum compactness and mass increase in the presence of an electric field and anisotropic pressures. Based on the analytic models developed in this present work, the values of some relevant physical quantities have been calculated by assuming the estimated masses and radii of some well-known potential strange star candidates like PSR J1614-2230, PSR J1903+327, Vela X-1, and 4U 1820-30.

show abstract

Section: Anisotropic Charged Stellar Modelsmentioning

confidence: 99%

Some new Wyman–Leibovitz–Adler type static relativistic charged anisotropic fluid spheres compatible to self-bound stellar modeling

Murad

Fatema

2015

Eur. Phys. J. C

View full text Add to dashboard Cite

show abstract

“…The Tolman-Oppenheimer-Volkoff (TOV) approach is a valuable technique to integrate the Einstein field equations of general relativity for a fluid sphere in hydrostatic equilibrium [1][2][3]. Once a polytropic equation of state, relating pressure and energy density of the fluid, is assumed, the same system of differential equations can be applied in the construction of solutions representing gas clouds, stellar configurations, naked singularities, and wormholes [4][5][6][7][8][9][10][11][12][13][14][15]. Also black hole solutions can be understood as limiting-case solutions to the TOV system.…”

Section: Introductionmentioning

confidence: 99%

Black holes and naked singularities from Anton–Schmidt’s fluids

Capozziello

D’Agostino

Gregoris

2020

Physics of the Dark Universe

View full text Add to dashboard Cite

Adopting the Tolman-Oppenheimer-Volkoff formalism, we propose a new analytical solution for a static and spherically symmetric black hole where the cosmological constant is generalized to a nonisotropic Anton-Schmidt fluid acting as a unified dark energy -dark matter source. Our novel result can describe a black hole in energetic equilibrium with the surrounding universe. We thus investigate the interplay between the mass of the black hole and the parameters of the Anton-Schmidt equation of state, and physically interpret the solution as a family of space-time metrics that may describe both Schwarzschild-de Sitter black holes and naked singularities. The result opens a new window for further constraining the physical properties of the cosmic fluid using the Event Horizon Telescope results, which complement the analysis relying on classical cosmological observations.

show abstract

Exact regular models for static relativistic stars

Cited by 2 publications

References 3 publications

Some new Wyman–Leibovitz–Adler type static relativistic charged anisotropic fluid spheres compatible to self-bound stellar modeling

Some new Wyman–Leibovitz–Adler type static relativistic charged anisotropic fluid spheres compatible to self-bound stellar modeling

Black holes and naked singularities from Anton–Schmidt’s fluids

Contact Info

Product

Resources

About