Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Marcus Ansorg"'
This book treats the classical problem of gravitational physics within Einstein's theory of general relativity. It presents basic principles and equations needed to describe rotating fluid bodies, as well as black holes in equilibrium. It then goes o
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 463:2667-2679
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edb4be86d8e51c0ca951cfbc172a3e6a
https://doi.org/10.1093/mnras/stw2152
https://doi.org/10.1093/mnras/stw2152
Publikováno v:
Physical Review D
Physical Review D, American Physical Society, 2018, 98 (12), pp.124005. ⟨10.1103/PhysRevD.98.124005⟩
Phys.Rev.D
Phys.Rev.D, 2018, 98 (12), pp.124005. ⟨10.1103/PhysRevD.98.124005⟩
Physical Review D, American Physical Society, 2018, 98 (12), pp.124005. ⟨10.1103/PhysRevD.98.124005⟩
Phys.Rev.D
Phys.Rev.D, 2018, 98 (12), pp.124005. ⟨10.1103/PhysRevD.98.124005⟩
We study quasi-normal modes of black holes, with a focus on resonant (or quasi-normal mode) expansions, in a geometric frame based on the use of conformal compactifications together with hyperboloidal foliations of spacetime. Specifically, this work
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efe71ff6f1f73d68fed0500da93dc88d
Autor:
Marcus Ansorg, Michael Kalisch
In this paper, we describe in detail a scheme for the construction of highly accurate numerical solutions to Einstein's field equations in five and six spacetime dimensions, corresponding to non-uniform black strings. The scheme consists of a sophist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae3caa7bb82a21d89d16ee4aa8f00d0f
http://arxiv.org/abs/1607.03099
http://arxiv.org/abs/1607.03099
Autor:
Rodrigo Panosso Macedo, Marcus Ansorg
In this paper we present a spectral decomposition of solutions to relativistic wave equations described on horizon penetrating hyperboloidal slices within a given Schwarzschild-black-hole background. The wave equa- tion in question is Laplace-transfo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e12f63b2f2e1f5e70fe4b8e497ca1766
http://arxiv.org/abs/1604.02261
http://arxiv.org/abs/1604.02261
Publikováno v:
Astrophys.J.
Astrophys.J., 2017, 837 (1), pp.58. ⟨10.3847/1538-4357/aa56c1⟩
Astrophys.J., 2017, 837 (1), pp.58. 〈10.3847/1538-4357/aa56c1〉
Astrophys.J., 2017, 837 (1), pp.58. ⟨10.3847/1538-4357/aa56c1⟩
Astrophys.J., 2017, 837 (1), pp.58. 〈10.3847/1538-4357/aa56c1〉
We study the main astrophysical properties of differentially rotating neutron stars described as stationary and axisymmetric configurations of a moderately stiff $\Gamma=2$ polytropic fluid. The high level of accuracy and of stability of our relativi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0ec0d5e44fef2941472dbb13f75fd55
Autor:
Marcus Ansorg, Jörg Hennig
Publikováno v:
Annales Henri Poincare
We use soliton methods in order to investigate the interior electrovacuum region of axisymmetric and stationary, electrically charged black holes with arbitrary surrounding matter in Einstein-Maxwell theory. These methods can be applied since the Ein
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3e139d5d50581de2b1fcc837d6bdb56
https://doi.org/10.1007/s00023-009-0012-0
https://doi.org/10.1007/s00023-009-0012-0
Autor:
Marcus Ansorg, Jörg Hennig
Publikováno v:
Journal of Hyperbolic Differential Equations
With the example of the spherically symmetric scalar wave equation on Minkowski space-time we demonstrate that a fully pseudospectral scheme (i.e. spectral with respect to both spatial and time directions) can be applied for solving hyperbolic equati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b27072f3c654d9aeaa4190274aa5073c
https://doi.org/10.1142/s0219891609001769
https://doi.org/10.1142/s0219891609001769
Publikováno v:
Relativistic Figures of Equilibrium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5de97a591df2d1c644a33ebfe5f913e5
https://doi.org/10.1017/cbo9780511535154.009
https://doi.org/10.1017/cbo9780511535154.009
Publikováno v:
Relativistic Figures of Equilibrium. :203-207
In this appendix, we discuss an alternative representation of the solution for the rigidly rotating disc of dust. The underlying mathematical structure of this formulation is given through the so-called Backlund transformation, which is a technique t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1000b6b1db7b1289ba044f0ac7a6fbae
https://doi.org/10.1017/cbo9780511535154.010
https://doi.org/10.1017/cbo9780511535154.010