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pro vyhledávání: '"Pastora J."'
Autor:
Hernández-Pastora, J. L.
Publikováno v:
General Relativity and Gravitation 56: 23 (2024)
In the standard Einstein's theory the exterior gravitational field of any static and axially symmetric stellar object can be described by means of a single function from which we obtain a metric into a four-dimensional space-time. In this work we pre
Externí odkaz:
http://arxiv.org/abs/2311.13497
Autor:
Hernández-Pastora, J. L., Herrera, L.
Publikováno v:
Eur. Phys. J. C (2023) 83:375
While it is known that any spherical fluid distribution may only source the spherically symmetric Schwarzschild space-time, the inverse is not true. Thus, in this manuscript, we find exact axially symmetric and static fluid (interior) solutions to Ei
Externí odkaz:
http://arxiv.org/abs/2304.12640
Autor:
Hernandez-Pastora, J. L.
Publikováno v:
The European Physical Journal C, Eur. Phys. J. C (2022) 82:224
Using an integral definition to calculate the relativistic multipole moments (RMM), and the ensuing generalized relativistic Gauss theorem, we prove that the evaluation of that volume integral in Erez-Rosen coordinates, leads to a specific link betwe
Externí odkaz:
http://arxiv.org/abs/2203.07719
Recent observations of the orbits of star clusters around Sgr $A^\star$, imaging of black holes and gravitational waveforms of merging compact objects require a detailed understanding of the general relativistic geodesic motion. We came up with a met
Externí odkaz:
http://arxiv.org/abs/2202.12415
Autor:
Hernandez-Pastora, J. L.
A method to construct interior axially symmetric metrics that appropriately match with any vacuum solution of the Weyl family is developed in Hernandez-Pastora etal. (Class Quantum Gravity 33:235005, 2016). It was shown,for the case of some vacuum so
Externí odkaz:
http://arxiv.org/abs/2005.03926
By applying a recent method --based on a tetrad formalism in General Relativity and the orthogonal splitting of the Riemann tensor-- to the simple spherical static case, we found that the only static solution with homogeneous energy density is the Sc
Externí odkaz:
http://arxiv.org/abs/1810.03059
Akademický článek
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Autor:
Herrera, L., Hernandez-Pastora, J. L.
Publikováno v:
PRD 96, 024048 (2017)
We investigate some important physical aspects of a recently presented interior solution for the Kerr metric. It is shown that, as in the spherically symmetric case, there is a specific limit for the maximal value of the surface potential (degree of
Externí odkaz:
http://arxiv.org/abs/1707.02872
Autor:
Hernandez-Pastora, J. L., Herrera, L.
Publikováno v:
Phys. Rev.D95, 024003, (2017)
A, recently presented, general procedure to find static and axially symmetric, interior solutions to the Einstein equations, is extended to the stationary case, and applied to find an interior solution for the Kerr metric. The solution, which is gene
Externí odkaz:
http://arxiv.org/abs/1701.02098
A general procedure to find static and axially symmetric, interior solutions to the Einstein equations is presented. All the so obtained solutions, verify the energy conditions for a wide range of values of the parameters, and match smoothly to some
Externí odkaz:
http://arxiv.org/abs/1607.02315