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2007 | 5 | 4 | 599-610
Tytuł artykułu

Extreme gravitational lensing in vicinity of Schwarzschild-de Sitter black holes

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
We have developed a realistic, fully general relativistic computer code to simulate optical projection in a strong, spherically symmetric gravitational field. The standard theoretical analysis of optical projection for an observer in the vicinity of a Schwarzschild black hole is extended to black hole spacetimes with a repulsive cosmological constant, i.e, Schwarzschild-de Sitterspacetimes. Influence of the cosmological constant is investigated for static observers and observers radially free-falling from the static radius. Simulations include effects of the gravitational lensing, multiple images, Doppler and gravitational frequency shift, as well as the intensity amplification. The code generates images of the sky for the static observer and a movie simulations of the changing sky for the radially free-falling observer. Techniques of parallel programming are applied to get a high performance and a fast run of the BHC simulation code.
Wydawca
Czasopismo
Rocznik
Tom
5
Numer
4
Strony
599-610
Opis fizyczny
Daty
wydano
2007-12-01
online
2007-12-01
Twórcy
autor
  • Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01, Opava, Czech Republic , pavel.bakala@fpf.slu.cz
  • Institute of Computer Science, Faculty of Philosophy and Science, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01, Opava, Czech Republic
  • Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01, Opava, Czech Republic
  • Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01, Opava, Czech Republic
  • Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01, Opava, Czech Republic
Bibliografia
  • [1] A. Einstein: “Lens-like action of a star by the deviation of light in the gravitational field”, Science, Vol. 84, (1936), pp. 506–507. http://dx.doi.org/10.1126/science.84.2188.506[Crossref]
  • [2] C.T. Cunningham: “Optical Appearance of Distant Observers near and inside a Schwarzschild Black Hole”, Phys. Rev. D, Vol. 12, (1975), pp. 323–328. http://dx.doi.org/10.1103/PhysRevD.12.323[Crossref]
  • [3] W. Benger: “Simulation of a Black Hole by Raytracing”, In: Relativity and Scientific Computing: Computer Algebra, Numerics, Visualization, Springer-Verlag Telos, 1996.
  • [4] A. J. S. Hamilton: “Black Hole Flight Simulator”, Bulletin of the American Astronomical Society, Vol. 36, (2004), pp. 810.
  • [5] D. Kobras, D. Weiskopf and H. Ruder: “Image-based rendering and general relativity”, In: WSCG 2001 Conference Proceedings, University of West Bohemia, Pilsen, 2001, pp. 130–137.
  • [6] R.J. Nemiroff: “Visual distortion near a neutron star a and black hole”, Am. J. Phys., Vol. 61, (1993), pp. 619–631. http://dx.doi.org/10.1119/1.17224[Crossref]
  • [7] H.P. Nollert, H. Ruder, H. Herold and U. Kraus: “The relativistic looks of a neutron star”, Astron. Astrophys., Vol. 208, (1989), pp. 153–156.
  • [8] H.C. Ohanian: “The black hole as a gravitational lens”, Am. J. Phys., Vol. 55, (1987), pp. 428–432. http://dx.doi.org/10.1119/1.15126[Crossref]
  • [9] S.U. Viergutz: “Image generation in Kerr geometry. I. Analytical investigations on the stationary emitter-observer problem”, Astron. Astrophys., Vol. 272, (1993), pp. 355–377.
  • [10] L.M. Krauss and M.S. Turner: “The Cosmological constant is back”, Gen. Relat. Gravit., Vol. 27, (1995), pp. 1137–1144. http://dx.doi.org/10.1007/BF02108229[Crossref]
  • [11] J.P. Ostriker and P.J. Steinhardt: “The Observational case for a low density universe with a nonzero cosmological constant”, Nature, Vol. 377, (1995), pp. 600–602. http://dx.doi.org/10.1038/377600a0[Crossref]
  • [12] Z. Stuchlík and S. Hledík: “Some properties of the Schwarzschild-de Sitter and Schwarzschild-anti-de Sitter spacetimes”, Phys. Rev. D, Vol. 60, (1999), art. 044006.
  • [13] Z. Stuchlík and K. Plšková: “Optical apperance of isotropically radiating sphere in the Schwarzschild-de Sitter spacetime”, In: Proceedings of RAGtime 4/5, eds. S. Hledík and Z. Stuchlík, Silesian University in Opava, Opava, 2004, pp. 167–185.
  • [14] P. Bakala, P. Čermák, S. Hledík, Z. Stuchlík and K. Truparová Plšková: “A virtual trip to the Schwarzschild-de Sitter black hole”, In: Proceedings of RAGtime 6/7, eds. S. Hledík and Z. Stuchlík, Silesian University in Opava, Opava, 2005, pp. 11–28.
  • [15] Relativistic and particle physics and its astrophysical aplications, “Czech research project MSM 4781305903”, http://www.physics.cz/research/.
  • [16] Z. Stuchlík, P. Slaný and S. Hledík: “Equilibrium configurations of perfect fluid orbiting Schwarzschild-de Sitter black holes”, Astron. Astrophys., Vol. 363, (2000), pp. 425–439.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11534-007-0033-6
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