Numerical relativity simulations in the era of the Einstein Telescope (2009)
Numerical-relativity (NR) simulations of compact binaries are expected to be an invaluable tool in gravitational-wave (GW) astronomy. The sensitivity of future detectors such as the Einstein...
Collapse of differentially rotating supermassive stars: Post black hole formation (2009)
We investigate the collapse of differentially rotating supermassive stars (SMSs) by means of 3+1 hydrodynamic simulations in general relativity. We particularly focus on the onset of collapse to...
Excision without excision: the relativistic turducken (2007)
Brown, David, Sarbach, Olivier, Schnetter, Erik, Tiglio, Manuel, Diener, Peter, Hawke, Ian, ...
to turducken (turduckens, turduckening, turduckened, turduckened) [math.]: To stuff a black hole. We analyze and apply an alternative to black hole excision based on smoothing the interior of black...
On the gravitational radiation from the collapse of neutron stars to rotating black holes (2007)
Baiotti, Luca, Hawke, Ian, Rezzolla, Luciano
We provide details and present additional results on the numerical study of the gravitational-wave emission from the collapse of neutron stars to rotating black holes in three dimensions. More...
Rotating collapse of stellar iron cores in general relativity (2007)
Ott, Christian D., Dimmelmeier, Harald, Marek, Andreas, Janka, Hans-Thomas, Zink, Burkhard, Hawke, Ian, ...
We present results from the first 2+1 and 3+1 simulations of the collapse of rotating stellar iron cores in general relativity employing a finite-temperature equation of state and an approximate...
Fragmentation of general relativistic quasi-toroidal polytropes (2007)
Zink, Burkhard, Stergioulas, Nikolaos, Hawke, Ian, Ott, Christian D., Schnetter, Erik, Mueller, Ewald
We investigate the role of rotational instabilities in the context of black hole formation in relativistic stars. In addition to the standard scenario - an axially symmetric dynamical instability...
On the gravitational radiation from the collapse of neutron stars to rotating black holes (2007)
Baiotti, Luca, Hawke, Ian, Rezzolla, Luciano
We provide details and present additional results on the numerical study of the gravitational-wave emission from the collapse of neutron stars to rotating black holes in three dimensions. More...
Ott, Christian D., Dimmelmeier, Harald, Marek, Andreas, Janka, Hans-Thomas, Hawke, Ian, Zink, B., ...
We present 2D and 3D simulations of the collapse of rotating stellar iron cores in general relativity employing a nuclear equation of state and an approximate treatment of deleptonization. We compare...
Rotating Collapse of Stellar Iron Cores in General Relativity (2007)
Ott, Christian D., Dimmelmeier, Harald, Marek, Andreas, Janka, Hans-Thomas, Zink, Burkhard, Hawke, Ian, ...
We present results from the first 2+1 and 3+1 simulations of the collapse of rotating stellar iron cores in general relativity employing a finite-temperature equation of state and an approximate...
On the gravitational radiation from the collapse of neutron stars to rotating black holes (2007)
Baiotti, Luca, Hawke, Ian, Rezzolla, Luciano
We provide details and present additional results on the numerical study of the gravitational-wave emission from the collapse of neutron stars to rotating black holes in three dimensions. More...
Ott, Christian D., Dimmelmeier, Harald, Marek, Andreas, Janka, Hans-Thomas, Hawke, Ian, Zink, B., ...
We present results from the first 2D and 3D simulations of the collapse of rotating stellar iron cores in general relativity employing a finite-temperature equation of state and an approximate...
Supermassive black hole formation through rotational instabilities (2007)
Zink, Burkhard, Stergioulas, Nikolaos, Hawke, Ian, Ott, Christian D., Schnetter, Erik, Müller, Ewald
Excision without excision (2007)
Brown, David, Sarbach, Olivier, Schnetter, Erik, Tiglio, Manuel, Diener, Peter, Hawke, Ian, ...
We analyze and apply an alternative to black hole excision based on smoothing the interior of black holes with arbitrary -- possibly constraint violating -- initial data, and solving the vacuum...
Details on the gravitational-wave emission from rotating gravitational collapse in 3D (2007)
Baiotti, Luca, Hawke, Ian, Rezzolla, Luciano, Schnetter, Erik
We here provide details on the numerical study of the gravitational-wave emission from the gravitational collapse to black holes of rotating neutron stars in three dimensions. More specifically, we...
Nonaxisymmetric instability and fragmentation of general relativistic quasitoroidal stars (2007)
Zink, Burkhard, Stergioulas, Nikolaos, Hawke, Ian, Ott, Christian D., Schnetter, Erik, Müller, Ewald
Excision without excision (2007)
Brown, Duncan A., Sarbach, Olivier, Schnetter, Erik, Tiglio, Manuel, Diener, Peter, Hawke, Ian, ...
To stuff a black hole. We analyze and apply an alternative to black hole excision based on smoothing the interior of black holes with arbitrary initial data, and solving the vacuum Einstein evolution...
Nonaxisymmetric instability and fragmentation of general relativistic quasitoroidal stars (2007)
Zink, Burkhard, Stergioulas, Nikolaos, Hawke, Ian, Ott, Christian D., Schnetter, Erik, Müller, Ewald
In a recent publication, we have demonstrated that differentially rotating stars admit new channels of black hole formation via fragmentation instabilities. Since a higher order instability of this...
Rotating Collapse of Stellar Iron Cores in General Relativity (2006)
Ott, Christian D., Dimmelmeier, Harald, Marek, Andreas, Janka, Hans-Thomas, Zink, Burkhard, Hawke, Ian, ...
We present results from the first 2+1 and 3+1 simulations of the collapse of rotating stellar iron cores in general relativity employing a finite-temperature equation of state and an approximate...
Non-axisymmetric instability and fragmentation of general relativistic quasi-toroidal stars (2006)
Zink, Burkhard, Stergioulas, Nikolaos, Hawke, Ian, Ott, Christian D., Schnetter, Erik, Mueller, Ewald
In a recent publication, we have demonstrated that differentially rotating stars admit new channels of black hole formation via fragmentation instabilities. Since a higher order instability of this...
W-modes in rotating relativistic stars (2006)
Stergioulas, Nikolaos, Kokkotas, Kostas, Hawke, Ian
We obtain w-mode frequencies of rapidly rotating, relativistic stars, using a 3D fully nonlinear numerical code. The so-called "inverse-Cowling approximation" is used by fixing the evolution of the...
Black hole formation through fragmentation of toroidal polytropes (2006)
Zink, Burkhard, Stergioulas, Nikolaos, Hawke, Ian, Ott, Christian D., Schnetter, Erik, Müller, Ewald
We investigate new paths to black hole formation by considering the general relativistic evolution of a differentially rotating polytrope with toroidal shape. We find that this polytrope is unstable...
Formation of supermassive black holes through fragmentation of torodial supermassive stars (2006)
Zink, Burkhard, Stergioulas, Nikolaos, Hawke, Ian, Ott, Christian D., Schnetter, Erik, Müller, Ewald
Formation of supermassive black holes through fragmentation of torodial supermassive stars (2006)
Zink, Burkhard, Stergioulas, Nikolaos, Hawke, Ian, Ott, Christian D., Schnetter, Erik, Müller, Ewald
We investigate new paths to supermassive black hole formation by considering the general relativistic evolution of a differentially rotating polytrope with a toroidal shape. We find that this...
Dynamical evolution of quasi-circular binary black hole data (2005)
Alcubierre, Miguel, Brügmann, Bernd, Diener, Peter, Guzmán, F. Siddhartha, Hawke, Ian, Hawley, Scott, ...
We study the fully nonlinear dynamical evolution of binary black hole data, whose orbital parameters are specified via the effective potential method for determining quasicircular orbits. The cases...
Hawke, Ian, Löffler, Frank, Nerozzi, Andrea
We present a simple method for applying excision boundary conditions for the relativistic Euler equations. This method depends on the use of reconstruction-evolution methods, a standard class of...
Black hole formation through fragmentation of toroidal polytropes (2005)
Zink, Burkhard, Stergioulas, Nikolaos, Hawke, Ian, Ott, Christian D., Schnetter, Erik, Mueller, Ewald
We investigate new paths to black hole formation by considering the general relativistic evolution of a differentially rotating polytrope with toroidal shape. We find that this polytrope is unstable...
Hawke, Ian, Löffler, Frank, Nerozzi, Andrea
We present a simple method for applying excision boundary conditions for the relativistic Euler equations. This method depends on the use of Reconstruction-Evolution methods, a standard class of HRSC...
Babiuc, Maria, Szilagyi, Bela, Hawke, Ian, Zlochower, Yosef
We implement a code to find the gravitational news at future null infinity by using data from a Cauchy code as boundary data for a characteristic code. This technique of Cauchy-characteristic...
Baiotti, Luca, Hawke, Ian, Montero, Pedro J., Löffler, Frank, Rezzolla, Luciano, Stergioulas, Nikolaos, ...
We present a new three-dimensional fully general-relativistic hydrodynamics code using high-resolution shock-capturing techniques and a conformal traceless formulation of the Einstein equations....
Babiuc, Maria, Szilágyi, Béla, Hawke, Ian, Zlochower, Yosef
We implement a code to find the gravitational news at future null infinity by using data from a Cauchy code as boundary data for a characteristic code. This technique of Cauchy–characteristic...
Gravitational-Wave Emission from Rotating Gravitational Collapse in three Dimensions (2005)
Baiotti,L., Hawke,Ian, Rezzolla,L., Schnetter,Eric
We present the first calculation of gravitational wave emission produced in the gravitational collapse of uniformly rotating neutron stars to black holes in fully three-dimensional simulations. The...
Hawke,Ian, Löffler,Frank, Nerozzi,Andrea
We present a simple method for applying excision boundary conditions for the relativistic Euler equations. This method depends on the use of Reconstruction-Evolution methods, a standard class of HRSC...
Gravitational-Wave Emission from Rotating Gravitational Collapse in three Dimensions (2005)
Baiotti, Luca, Hawke, Ian, Rezzolla, Luciano, Schnetter, Erik
We present the first calculation of gravitational wave emission produced in the gravitational collapse of uniformly rotating neutron stars to black holes in fully three-dimensional simulations. The...
Dynamical evolution of quasi-circular binary black hole data (2005)
Alcubierre, Miguel, Brügmann, Bernd, Diener, Peter, Guzman, F. Siddhartha, Hawke, Ian, Hawley, Scott, ...
We study the fully nonlinear dynamical evolution of binary black hole data, whose orbital parameters are specified via the effective potential method for determining quasi-circular orbits. The cases...
Hawke, Ian, Löffler, Frank, Nerozzi, Andrea
We present a simple method for applying excision boundary conditions for the relativistic Euler equations. This method depends on the use of Reconstruction-Evolution methods, a standard class of HRSC...
Babiuc, Maria C., Szilagyi, Bela, Hawke, Ian, Zlochower, Yosef
We implement a code to find the gravitational news at future null infinity by using data from a Cauchy code as boundary data for a characteristic code. This technique of Cauchy-characteristic...
Baiotti, Luca, Hawke, Ian, Seidel, Edward, Montero, Pedro J., Löffler, Frank, Rezzolla, Luciano, ...
Gravitational waves from the 3D collapse of a neutron star to a Kerr black hole (2005)
Hawke, Ian, Baiotti, Luca, Rezzolla, Luciano, Schnetter, Erik
Gravitational-wave emission from rotating gravitational collapse in three dimensions (2005)
Baiotti, Luca, Hawke, Ian, Rezzolla, Luciano, Schnetter, Erik
We present the first calculation of gravitational wave emission produced in the gravitational collapse of uniformly rotating neutron stars to black holes in fully three-dimensional simulations. The...
Gravitational-Wave Emission from Rotating Gravitational Collapse in Three Dimensions (2005)
Baiotti, Luca, Hawke, Ian, Rezzolla, Luciano, Schnetter, E.
We present the first three-dimensional (3D) calculations of the gravitational wave emission produced in the gravitational collapse of uniformly rotating neutron stars to black holes in fully...
Baiotti, Luca, Hawke, Ian, Montero, Pedro J., Loeffler, Frank, Rezzolla, Luciano, Stergioulas, Nikolaos, ...
We present a new three-dimensional fully general-relativistic hydrodynamics code using high-resolution shock-capturing techniques and a conformal traceless formulation of the Einstein equations....
Dynamical evolution of quasi-circular binary black hole data (2004)
Alcubierre, Miguel, Bruegmann, Bernd, Diener, Peter, Guzman, F. Siddhartha, Hawke, Ian, Hawley, Scott, ...
We study the fully nonlinear dynamical evolution of binary black hole data, whose orbital parameters are specified via the effective potential method for determining quasi-circular orbits. The cases...
Evolutions in 3D numerical relativity using fixed mesh refinement (2004)
Schnetter,Erik, Hawley,Scott H., Hawke,Ian
We present results of 3D numerical simulations using a finite difference code featuring fixed mesh refinement (FMR), in which a subset of the computational domain is refined in space and time. We...
Towards standard testbeds for numerical relativity (2004)
Alcubierre, Miguel, Allen, Gabrielle, Bona, Carles, Fiske, David, Goodale, Tom, Guzmán, F. Siddhartha, ...
In recent years, many different numerical evolution schemes for Einstein's equations have been proposed to address stability and accuracy problems that have plagued the numerical relativity community...
Evolutions in 3D numerical relativity using fixed mesh refinement (2004)
Schnetter, Erik, Hawley, Scott H., Hawke, Ian
We present results of 3D numerical simulations using a finite difference code featuring fixed mesh refinement (FMR), in which a subset of the computational domain is refined in space and time. We...
Toward standard testbeds for numerical relativity (2004)
Alcubierre,Miguel, Allen,Gabrielle, Bona,Carles, Fiske,David, Goodale,Tom, Guzman,F. Siddhartha, ...
In recent years, many different numerical evolution schemes for Einstein's equations have been proposed to address stability and accuracy problems that have plagued the numerical relativity community...
Toward standard testbeds for numerical relativity (2004)
Alcubierre, Miguel, Allen, Gabrielle, Bona, Carles, Fiske, David R., Goodale, Tom, Guzman, F. Siddhartha, ...
In recent years, many different numerical evolution schemes for Einstein's equations have been proposed to address stability and accuracy problems that have plagued the numerical relativity community...
Evolutions in 3D numerical relativity using fixed mesh refinement (2004)
Schnetter, Erik, Hawley, Scott H., Hawke, Ian
We present results of 3D numerical simulations using a finite difference code featuring fixed mesh refinement (FMR), in which a subset of the computational domain is refined in space and time. We...
Evolutions in 3D numerical relativity using fixed mesh refinement (2003)
Schnetter, Erik, Hawley, Scott H., Hawke, Ian
We present results of 3D numerical simulations using a finite difference code featuring fixed mesh refinement (FMR), in which a subset of the computational domain is refined in space and time. We...
Toward standard testbeds for numerical relativity (2003)
Alcubierre, Miguel, Allen, Gabrielle, Bona, Carles, Fiske, David, Goodale, Tom, Guzman, F. Siddharta, ...
In recent years, many different numerical evolution schemes for Einstein's equations have been proposed to address stability and accuracy problems that have plagued the numerical relativity community...
Black hole formation through fragmentation of toroidal polytropes
Zink,Burkhard, Stergioulas,Nikolaos, Hawke,Ian, Ott,Christian D., Schnetter,Erik, Müller,Ewald
We investigate new paths to black hole formation by considering the general relativistic evolution of a differentially rotating polytrope with toroidal shape. We find that this polytrope is unstable...
Three-dimensional Stellar Core Collapse in Full General Relativity
Ott,C.D., Zink,B., Dimmelmeier,Harald, Hawke,Ian, Schnetter,Erik, Müller,E.
Three-dimensional Stellar Core Collapse in Full General Relativity
Ott, Christian D., Zink, B., Dimmelmeier, Harald, Hawke, Ian, Schnetter, Erik, Müller, Ewald
Gravitational radiation from 3D collapse to rotating black holes
Baiotti, Luca, Hawke, Ian, Rezzolla, Luciano, Schnetter, Erik
Non-axisymmetric instability and fragmentation of general relativistic quasi-toroidal stars
Zink, Burkhard, Stergioulas, Nikolaos, Hawke, Ian, Ott, Christian D., Schnetter, Erik, Müller, Ewald
In a recent publication, we have demonstrated that differentially rotating stars admit new channels of black hole formation via fragmentation instabilities. Since a higher order instability of this...