Project B5;     (2003 - 2010)

 Project List   Abstracts   All Publications 

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Collision and Merger of Black Holes and Neutron Stars

    Principal Investigators: Luciano Rezzolla, Bernd Brügmann

This project will provide the first systematic description in full general relativity of the dynamics of matter in a black-hole plus neutron-star binary system which undergoes a progressive inspiral and merger as it loses energy and angular momentum through the emission of gravitational radiation.

This project will provide the first systematic description in full general relativity of the dynamics of matter in a black-hole plus neutron-star binary system which undergoes a progressive inspiral and merger as it loses energy and angular momentum through the emission of gravitational radiation. There are two principal reasons for this project. First, it will allow determination of the gravitational-wave emission from these systems, which are expected to be astrophysically frequent but to date have been studied only in the Newtonian or post-Newtonian approximations. Second, by accurately describing the process of tidal disruption of the neutron star, the project hopes to shed light on the physical processes that are expected to underlie the phenomenology of catastrophic events such as Gamma Ray Bursts (GRBs), as well as provide important information on the properties of matter at nuclear regimes.


Former Associates
  Sebastiano Bernuzzi   Postdoc, 2008-2010
  Bernd Brügmann   Professor, PI 2007-2010
  Michael Gabler   PhD Student, 2007-2010
  Pablo Galaviz   PhD Student, 2007-2010
  Jason Grigsby   Postdoc, 2009-2010
  Frank Herrmann   PhD Student, 2003-2005
  Michael Koppitz   PhD Student, 2003-2003
  Niels Lohmann   PhD Student, 2005-2007
  Denis Pollney   Postdoc, PI 2003-2006 2008-2010
  Jocelyn Read   Postdoc, 2009-2010
  Luciano Rezzolla   Professor, PI 2006-2010
  Erik Schnetter   Postdoc, 2003-2005
  Bela Szilagyi   Postdoc, 2005-2007
  Jonathan Thornburg   Postdoc, PI, -2007
  Benny Walther   Student, 2007-2008


[1] Axisymmetric General Relativistic Simulations of the Accretion-Induced Collapse of White Dwarfs
E. B. Abdikamalov, C. D. Ott, L. Rezzolla, L. Dessart, H. Dimmelmeier, A. Marek, and H. Janka, Phys. Rev. D 81, 044012 (2010)

[2] Vacuum Electromagnetic Counterparts of Binary Black-Hole Mergers
P. Möta, C. Palenzuela, L. Rezzolla, L. Lehner, S. Yoshida, and D. Pollney, Phys. Rev. D 81, 064017 (2010)

[3] Binary black hole merger in the extreme-mass-ratio limit: a multipolar analysis
S. Bernuzzi and A. Nagar, Phys. Rev. D 81, 084056 (2010)

[4] EM counterparts of recoiling black holes: general relativistic simulations of non-Keplerian discs
O. Zanotti, L. Rezzolla, L. Del Zanna, and C. Palenzuela, submitted to MNRAS

[5] Accurate evolutions of unequal-mass neutron-star binaries: properties of the torus and short GRB engines
L. Rezzolla, L. Baiotti, B. Giacomazzo, D. Link, and J. A. Font, Class.Quant.Grav.27:114105,2010

[6] Constraint violation in free evolution schemes: comparing BSSNOK with a conformal decomposition of Z4
S. Bernuzzi and D. Hilditch, Phys. Rev. D 81, 084003 (2010)

[7] Characteristic extraction in numerical relativity: binary black hole merger waveforms at null infinity
C. Reisswig, N. T. Bishop, D. Pollney, and B. Szilagyi, Class.Quant.Grav.27:075014,2010

[8] On the Shear Instability in Relativistic Neutron Stars
G. Corvino, L. Rezzolla, S. Bernuzzi, R. De Pietri, and B. Giacomazzo, Class.Quant.Grav.27:114104,2010

[9] Complete gravitational waveforms for black-hole binaries with non-precessing spins
P. Ajith, M. Hannam, S. Husa, Y. Chen, B. Brümann, N. Dorband, D. Müller, F. Ohme, D. Pollney, C. Reisswig, L. Santamaria, and J. Seiler,

[10] Non-linear radial oscillations of neutron stars
Michael Gabler, Ulrich Sperhake, Nils Andersson, Phys.Rev.D80:064012,2009

[11] Accurate evolutions of inspiralling neutron-star binaries: assessment of the truncation error
L. Baiotti, B. Giacomazzo and L. Rezzolla, Class.Quant.Grav.26:114005,2009

[12] Can magnetic fields be detected during the inspiral of binary neutron stars?
B. Giacomazzo, L. Rezzolla and L. Baiotti, MNRAS 399, L164 (2009)

[13] Asymptotic Falloff of Local Waveform Measurements in Numerical Relativity
D. Pollney, C. Reisswig, N. Dorband, E. Schnetter, and P. Diener, Phys. Rev. D 80, 121502 (2009)

[14] Unambiguous Determination of Gravitational Waveforms from Binary Black Hole Mergers
C. Reisswig, N. T. Bishop, D. Pollney, and B. Szilagyi, Phys. Rev. Lett. Vol. 103, 221101 (2009)

[15] Gravitational-wave detectability of equal-mass black-hole binaries with aligned spins
C. Reisswig, S. Husa, L. Rezzolla, E. N. Dorband, D. Pollney, and J. Seiler, Phys. Rev. D 80, 124026 (2009)

[16] Status of NINJA: the Numerical INJection Analysis project
L. Cadonati, et al., Class.Quant.Grav.26:114008,2009

[17] Testing gravitational-wave searches with numerical relativity wave-forms: results from the first Numerical INJection Analysis (NINJA) project
B. Aylott et al., Class.Quant.Grav.26:165008,2009

[18] Samurai project: Verifying the consistency of black-hole-binary waveforms for gravitational-wave detection
M. Hannam, et al., Phys. Rev. D 79, 084025 (2009)

[19] Searching for numerically simulated signals from black-hole binaries with a phenomenological template family
L. Santamaria, B. Krishnan, and J. T. Whelan, Class.Quant.Grav.26:114010,2009

[20] Modelling the final state from binary black-hole coalescences
L. Rezzolla, Class.Quant.Grav.26:094023,2009

[21] Beyond ideal MHD: towards a more realistic modelling of relativistic astrophysical plasmas
C. Palenzuela, L. Lehner, O. Reula, and L. Rezzolla, MNRAS 394, 1727 (2009)

[22] Gravitational-Wave Extraction from Neutron Stars Oscillations: comparing linear and nonlinear techniques.
L. Baiotti, S. Bernuzzi, G. Corvino, R. De Pietri, and A. Nagar., Phys. Rev. D 79, 024002 (2009)

[23] Relativistic simulations of the phase-transition-induced collapse of neutron stars
E. B. Abdikamalov, H. Dimmelmeier, L. Rezzolla, and J. C. Miller, MNRAS 392, 52 (2009)

[24] Gravitational waves from neutron stars: Promises and challenges
N. Andersson, V. Ferrari, D. I. Jones, K. D. Kokkotas, B. Krishnan, J. Read, L. Rezzolla, and B. Zink, review article for Einstein Telescope special issue in Gen. Rel. Grav.

[25] High accuracy binary black hole simulations with an extended wave zone
D. Pollney, C. Reisswig, E. Schnetter, N. Dorband, and P. Diener,

[26] Spin Diagrams for Equal-Mass Black-Hole Binaries with Aligned Spins
L. Rezzolla, E. N. Dorband, C. Reisswig, P. Diener, D. Pollney, E. Schnetter, B. Szilagyi, ApJ 679, 1422 (2008)

[27] The high-energy collision of two black holes
Sperhake, Ulrich and Cardoso, Vitor and Pretorius, Frans and Berti, Emanuele and Gonzalez, Jose A., Phys. Rev. Lett. Vol. 101 (2008)

[28] Accurate effective-one-body waveforms of inspiralling and coalescing black-hole binaries
T. Damour, A. Nagar, M. Hannam, S. Husa, and B. Brümann, Phys. Rev. D 78, 044039 (2009)

[29] The Final Spin from the Coalescence of Aligned-Spin Black Hole Binaries
L. Rezzolla, P. Diener, E. N. Dorband, D. Pollney, C. Reisswig, E. Schnetter, and J. Seiler, ApJ 674, L29 (2008)

[30] Implementation of standard testbeds for numerical relativity
M. C. Babiuc, et al., Class.Quant.Grav.25:125012,2008

[31] An improved formulation of the relativistic hydrodynamics equations in 2D Cartesian coordinates
T. Kellermann, L. Baiotti, B. Giacomazzo, and L. Rezzolla, Class.Quant.Grav.25:225007,2008

[32] On the ergoregion instability in rotating gravastars
C. B. M. H. Chirenti, L. Rezzolla, Phys. Rev. D 78, 084011 (2008)

[33] Accurate evolutions of inspiralling neutron-star binaries: Prompt and delayed collapse to a black hole
L. Baiotti, B. Giacomazzo and L. Rezzolla, Phys. Rev. D 78, 084033 (2008)

[34] Comparison between numerical relativity and a new class of post-Newtonian gravitational-wave phase evolutions: The nonspinning equal-mass case
A. Gopakumar, M. Hannam, S. Husa, and B. Brügmann, Phys. Rev. D 78, 064026 (2008)

[35] Comparison between numerical-relativity and post-Newtonian waveforms from spinning binaries: The orbital hang-up case
A. Gopakumar, M. Hannam, S. Husa, and B. Brügmann, Phys. Rev. D 78, 104007 (2008)

[36] A template bank for gravitational waveforms from coalescing binary black holes: Nonspinning binaries
P. Ajith, et al., Phys. Rev. D 77, 104017 (2008)

[37] Phenomenological template family for black-hole coalescence waveforms
P. Ajith, S. Babak, Y. Chen, M. Hewitson, B. Krishnan, J. T. Whelan, B. Bruegmann, P. Diener, J. Gonzalez, M. Hannam, S. Husa, M. Koppitz, D. Pollney, L. Rezzolla, L. Santamaria, A. M. Sintes, U. Sperhake, J. Thornburg, Class. Quantum Grav. 24 S689-S699

[38] Circular and non-circular nearly horizon-skimming orbits in Kerr spacetimes
E. Barausse, S. A. Hughes, L. Rezzolla, Phys Rev D 76, 044007

[39] Recoil Velocities from Equal-Mass Binary-Black-Hole Mergers
M. Koppitz, D. Pollney, C. Reisswig, L. Rezzolla, J. Thornburg, P. Diener, E. Schnetter, Phys. Rev. Lett. 99, 041102

[40] Dynamics of magnetized relativistic tori oscillating around black holes
P. J. Montero, O. Zanotti, J. A. Font, L. Rezzolla, MNRAS 378, 1101-1110 (2007)

[41] Are moving punctures equivalent to moving black holes?
J. Thornburg, P. Diener, D. Pollney, L. Rezzolla, E. Schnetter, E. Seidel, R. Takahashi, CQG, 24, 3911-3918 (2007)

[42] Recoil velocities from equal-mass binary black-hole mergers: a systematic investigation of spin-orbit aligned configurations
D. Pollney, C. Reisswig, L. Rezzolla, B. Szilagyi, M. Ansorg, B. Deris, P. Diener, E. N. Dorband, M. Koppitz, A. Nagar, E. Schnetter, Phys. Rev. D 76, 124002 (2007)

[43] Geometry and Regularity of Moving Punctures
M. Hannam, S. Husa, D. Pollney, B. Brümann, and N. O Murchadha, Phys. Rev. Lett. Vol. 99, 241102 (2007)

[44] Non-axisymmetric instability and fragmentation of general relativistic quasi-toroidal stars
B. Zink, N. Stergioulas, I. Hawke, C. D. Ott, E. Schnetter, and E. Müller, Phys. Rev. D 76, 024019 (2007)

[45] 3D Collapse of Rotating Stellar Iron Cores in General Relativity Including Deleptonization and a Nuclear Equation of State
C. D. Ott, H. Dimmelmeier, A. Marek, H. Janka, I. Hawke, B. Zink, and E. Schnetter, Phys. Rev. Lett. Vol. 98, 261101 (2007)

[46] Dynamical non-axisymmetric instabilities in rotating relativistic stars
G. M. Manca, L. Baiotti, R. DePietri, and L. Rezzolla, Class.Quant.Grav.24:171,2007

[47] Gravitational waves from extreme mass ratio inspirals in non-pure Kerr spacetimes
E. Barausse, L. Rezzolla, D. Petroff, and M. Ansorg, Phys. Rev. D 75, 064026 (2007)

[48] Accurate Evolution of Orbiting Binary Black Holes
P. Diener, F. Herrmann, D. Pollney, E. Seidel, R. Takahashi, J. Thornburg and J. Ventrella, Phys. Rev. Lett. 96, 121101 (2006)

[49] A powerful hydrodynamic booster for relativistic jets
M. A. Aloy, L. Rezzolla, Astrophys.J. 640 (2006) L115-L118

[50] Accurate simulations of the dynamical barmode instability in full General Relativity
L. Baiotti, R. de Pietri, G. M. Manca, L. Rezzolla, Phys.Rev. D75 (2007) 044023

[51] A hybrid approach to black hole perturbations from extended matter sources
V. Ferrari, L. Gualtieri, L. Rezzolla, Phys.Rev. D73 (2006) 124028

[52] Numerical evolutions of a black hole-neutron star system in full General Relativity
F. Loeffler, L. Rezzolla, M. Ansorg, Phys. Rev. D 74 104018 (2006)

[53] Numerical relativity with characteristic evolution, using six angular patches
C. Reisswig, N. T. Bishop, C. W. Lai, J. Thornburg, B. Szilagyi, Class. Quantum Grav. 24 (2007) S327-S339.

[54] An explicit harmonic code for black-hole evolution using excision
B. Szilagyi, D. Pollney, L. Rezzolla, J. Thornburg, J. Winicour, Class. Quantum Grav. 24 (2007) S275-S293.

[55] Dynamical evolution of quasi-circular binary black hole data
M. Alcubierre, B. Bruegmann, P. Diener, F. S. Guzman, I. Hawke, S. Hawley, F. Herrmann, M. Koppitz, D. Pollney, E. Seidel and J. Thornburg, Phys. Rev. D 72, 044004 (2005)

[56] Gravitational-Wave Emission from Rotating Gravitational Collapse in Three Dimensions
L. Baiotti, I. Hawke, L. Rezzolla and E. Schnetter, Phys. Rev. Lett. 94, 131101 (2005)

[57] Towards a wave-extraction method for numerical relativity II. The quasi-Kinnersley frame
A. Nerozzi, C. Beetle, M. Bruni, L. M. Burko, and D. Pollney, Phys. Rev. D72 024014 (2005)

[58] Horizon pretracking
E. Schnetter, D. Pollney and F. Herrmann, Phys. Rev. D 71 044033 (2005)

[59] Black hole head-on collisions and gravitational waves with fixed mesh-refinement and dynamic singularity excision
U. Sperhake, B. Kelly, P. Laguna, K. L. Smith, E. Schnetter, Phys. Rev. D 71, 124042 (2005)

[60] Nonlinear impact of perturbation theory on numerical relativity
E. Seidel, Class. Quant. Grav. 21, S339 (2004)

[61] Testing excision techniques for dynamical {3D} black hole evolutions
M. Alcubierre, B. Bruegmann, P. Diener, F. Herrmann, D. Pollney, E. Seidel, and R. Takahashi, gr-qc/0411137 (2004)

[62] Finding apparent horizons and other 2-surfaces of constant expansion
E. Schnetter, Class. Quant. Grav. 20, 4719-4737 (2003)

[63] Evolutions in 3D numerical relativity using fixed mesh refinement
E. Schnetter, S. H. Hawley and I. Hawke, Class. Quant. Grav. 21, 1465 (2003)


[64] Evolution and analysis of binary black hole spacetimes
F. Herrmann, Ph.D. thesis, Albert Einstein Institute, 2005

[65] Nonlinear Radial Oscillations of Neutron Stars
M. Gabler, Diploma thesis (2008)

[66] Modelling fluid interfaces in numerical relativistic hydrodynamics
M. Galeazzi, Diploma thesis (2008)

[67] Spin Measures on Isolated and Dynamical Horizons in Numerical Relativity
M. Jasiulek, Diploma thesis (2008)

[68] On the Final State of Inspiralling Neutron Stars
D. Link, Diploma thesis (2009)

[69] Puncture evolutions within the harmonic framework
P. Mösta, Diploma thesis (2008)