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pro vyhledávání: '"Gregory B. Cook"'
Autor:
Gregory B. Cook, Suhan Lu
Publikováno v:
Physical Review D. 107
In addition to the well-known quasinormal modes, the gravitational modes of the Kerr geometry also include sets of total-transmission modes. Each mode can be considered as an element of a sequence of modes parameterized by the angular momentum of the
Autor:
Daniel J. Vickers, Gregory B. Cook
Solutions to the Angular Teukolsky Equation have been used to solve various applied problems in physics and are extremely important to black-hole physics, particularly in computing quasinormal modes and in the extreme-mass-ratio inspiral problem. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f59794a32e724e98ce37cedde2d6efad
http://arxiv.org/abs/2208.06259
http://arxiv.org/abs/2208.06259
Autor:
Gregory B. Cook
A black hole that is ringing down to quiescence emits gravitational radiation of a very specific nature that can inform us of its mass and angular momentum, test the no-hair theorem for black holes, and perhaps even give us additional information abo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ae61ecaa9dd2a3b18ee86d66e3f5736
http://arxiv.org/abs/2004.08347
http://arxiv.org/abs/2004.08347
The gravitational modes of the Kerr geometry include both quasinormal modes and total-transmission modes. Sequences of these modes are parameterized by the angular momentum of the black hole. The quasinormal and total-transmission modes are usually d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb73dedb07268cb1e81676cea1799bfa
Autor:
Maxim Zalutskiy, Gregory B. Cook
In this paper, we examine the behavior of modes of the Kerr geometry when the mode's frequency is purely imaginary. We demonstrate that quasinormal modes must be polynomial in nature if their frequency is purely imaginary, and present a method for co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b10b57984e1222a888fb39a7e7693285
http://arxiv.org/abs/1607.07406
http://arxiv.org/abs/1607.07406
Autor:
Gregory B. Cook, Maxim Zalutskiy
Publikováno v:
Classical and Quantum Gravity. 33:245008
We present a method for determining the purely imaginary quasinormal modes of the Kerr geometry. Such modes have previously been explored, but we show that prior results are incorrect. The method we present, based on the theory of Heun polynomials, i
Publikováno v:
The Astrophysical Journal Supplement Series. 121:515-531
We examine the roles the presence of hyperons in the cores of neutron stars may play in determining global properties of these stars. The study is based on estimates that hyperons appear in neutron star matter at about twice the nuclear saturation de
Autor:
Saul A. Teukolsky, Gregory B. Cook
Publikováno v:
Acta Numerica. 8:1-45
We describe the burgeoning field of numerical relativity, which aims to solve Einstein's equations of general relativity numerically. The field presents many questions that may interest numerical analysts, especially problems related to nonlinear par
Publikováno v:
Physical Review D. 57:6181-6184
We analyze the stability of relativistic, quasi-equilibrium binary neutron stars in synchronous circular orbit. We explore stability against radial collapse to black holes prior to merger, and against orbital plunge. We apply theorems based on turnin
Autor:
Scott Klasky, Saul A. Teukolsky, Charles R. Evans, Peter Anninos, Randall R. Correll, Geoffrey C. Fox, Stuart L. Shapiro, Larry Kidder, Steven R. Brandt, Manish Parashar, Pablo Laguna, Luis Lehner, Mark A. Scheel, Thomas W. Baumgarte, Nigel T. Bishop, W. Landry, F. Saied, Arlen Anderson, Tomasz Haupt, Andrew M. Abrahams, Roberto Gomez, Gregory B. Cook, Richard A. Matzner, Larry Smarr, P. Walker, Lee Samuel Finn, Matthew W. Choptuik, Siddhartha Mitra, J. Lenaghan, Edward Seidel, Joan Masso, Philippos Papadopoulos, P. E. Saylor, James W. York, M. F. Huq, Deirdre Shoemaker, James C. Browne, M. H. P. M. van Putten, Luciano Rezzolla, Jeffrey Winicour, M. E. Rupright, Bela Szilagyi, K. Camarda, R. L. Marsa
Publikováno v:
Physical Review Letters. 80:3915-3918
We report new results which establish that the accurate 3dimensional numerical simulation of generic single-black-hole spacetimes has been achieved by characteristic evolution with unlimited long term stability. Our results cover a selection of disto