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and Gravitational Radiation
"... Buracos negros desempenham um papel fundamental na física actual. Os buracos negros possuem modos de vibração próprios, semelhantes aos de um sino ou de uma guitarra, a que chamamos modos quasinormais. Investigações passadas mostram que os modos quasinormais são importantes no entendimento da vibraç ..."
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Buracos negros desempenham um papel fundamental na física actual. Os buracos negros possuem modos de vibração próprios, semelhantes aos de um sino ou de uma guitarra, a que chamamos modos quasinormais. Investigações passadas mostram que os modos quasinormais são importantes no entendimento da vibração de buracos negros astrofísicos. Investigações recentes mostram que são importantes na conexão entre gravitação e mecânica quântica. O estudo de modos quasinormais é assim de extrema importância. Estes modos controlam todo e qualquer processo involvendo buracos negros, em particular a emissão de ondas gravitacionais geradas, por exemplo, na colisão de dois buracos negros. Existe a possibilidade de se criarem buracos negros em aceleradores, segundo conjecturas que invocam a existência de dimensões extra no universo. Tornase portanto imperativo fazer um estudo detalhado da radiação gravitacional emitida na colisão de buracos negros em várias dimensões, bem assim como o estudo de ondas gravitacionais em dimensões mais altas. Na presente dissertação apresentase um estudo aprofundado dos modos quasinormais de buracos negros, em vários espaçostempo de fundo. Investigase também a radiação gravitacional gerada na colisão de buracos negros com partículas e na colisão entre dois buracos
ELECTROMAGNETIC AND GRAVITATIONAL RADIATION OF
, 2008
"... Graviatom existence conditions have been found. The graviatoms (quantum systems around miniblackholes) satisfying these conditions contain the following charged particles: the electron, muon, tau lepton, wino, pion and kaon. Electric dipole and quadrupole and gravitational radiations are calculate ..."
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Graviatom existence conditions have been found. The graviatoms (quantum systems around miniblackholes) satisfying these conditions contain the following charged particles: the electron, muon, tau lepton, wino, pion and kaon. Electric dipole and quadrupole and gravitational radiations
SOLID INTERIORS OF NEUTRON STARS AND GRAVITATIONAL RADIATION
, 1996
"... to be published in “Astrophysical Sources of Gravitational Radiation” ..."
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Cited by 2 (0 self)
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to be published in “Astrophysical Sources of Gravitational Radiation”
Detection, measurement and gravitational radiation
 Phys. Rev
, 1992
"... The optimum design, construction, and use of the LIGO, VIRGO, or LAGOS gravitational radiation detectors depends upon accurate calculations of their sensitivity to different sources of radiation. Here I examine how to determine the sensitivity of these instruments to sources of gravitational radiati ..."
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Cited by 8 (0 self)
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The optimum design, construction, and use of the LIGO, VIRGO, or LAGOS gravitational radiation detectors depends upon accurate calculations of their sensitivity to different sources of radiation. Here I examine how to determine the sensitivity of these instruments to sources of gravitational
Photon rockets and gravitational radiation
, 1994
"... The absence of gravitational radiation in Kinnersley’s “photon rocket ” solution of Einstein’s equations is clarified by studying the mathematically welldefined problem of pointlike photon rockets in Minkowski space (i.e. massive particles emitting null fluid anisotropically and accelerating becau ..."
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The absence of gravitational radiation in Kinnersley’s “photon rocket ” solution of Einstein’s equations is clarified by studying the mathematically welldefined problem of pointlike photon rockets in Minkowski space (i.e. massive particles emitting null fluid anisotropically and accelerating
Linked and Knotted Gravitational Radiation
"... We show that the torus knot topology is inherent in electromagnetic and gravitational radiation by constructing spinN fields based on this topology from the wellknown elementary states of twistor theory. The twistor functions corresponding to the elementary states admit a parameterization in term ..."
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Cited by 2 (1 self)
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We show that the torus knot topology is inherent in electromagnetic and gravitational radiation by constructing spinN fields based on this topology from the wellknown elementary states of twistor theory. The twistor functions corresponding to the elementary states admit a parameterization
Accelerated observers and gravitational radiation
, 2005
"... We evaluate the energymomentum of the gravitational field of a Schwarzschild black hole of mass M in the frame of a moving observer that asymptotically undergoes a Lorentz boost. The analysis is carried out in the framework of the teleparallel equivalent of general relativity (TEGR). We find that t ..."
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Cited by 2 (1 self)
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to the black hole he will experience gravitational energy radiation, in similarity to the expected radiation of an accelerated charged particle in electrodynamics. We show that the increase of the mass of the black hole by the usual factor γ as observed in the moving frame, which is a typical feature
A note on the thermodynamics of gravitational radiation
, 2003
"... It is shown that linearized gravitational radiation confined in a cavity can achieve thermal equilibrium if the mean density of the radiation and the size of the cavity satisfy certain constraints. Is it possible, in principle, to confine gravitational radiation in a box, for a time long enough for ..."
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It is shown that linearized gravitational radiation confined in a cavity can achieve thermal equilibrium if the mean density of the radiation and the size of the cavity satisfy certain constraints. Is it possible, in principle, to confine gravitational radiation in a box, for a time long enough
LIGONIRGO SEARCHES FOR GRAVITATIONAL RADIATION IN HYPERNOVAE
, 2002
"... A torus around a stellarmass Kerr black hole can emit about 10 % of the spin energy of a black hole in gravitational radiation, which is potentially associated with a gammaray burst (GRB). Wide tori may develop buckling modes by the PapaloizouPringle instability and gravitational radiationreacti ..."
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A torus around a stellarmass Kerr black hole can emit about 10 % of the spin energy of a black hole in gravitational radiation, which is potentially associated with a gammaray burst (GRB). Wide tori may develop buckling modes by the PapaloizouPringle instability and gravitational radiation
PostNewtonian Gravitational Radiation
 Equations and Their Physical Implications: Selected Essays in Honour of Jürgen Ehlers, volume 540 of Lecture Notes in Physics, 225–271
, 2000
"... A. On approximation methods in general relativity Let us declare that the most important devoir of any physical theory is to draw firm predictions for the outcome of laboratory experiments and astronomical observations. Unfortunately, the devoir is quite difficult to fulfill in the case of general r ..."
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A. On approximation methods in general relativity Let us declare that the most important devoir of any physical theory is to draw firm predictions for the outcome of laboratory experiments and astronomical observations. Unfortunately, the devoir is quite difficult to fulfill in the case of general relativity, essentially
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