Hamburg 2016 – wissenschaftliches Programm
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GR: Fachverband Gravitation und Relativitätstheorie
GR 15: Numerical Relativity
GR 15.1: Vortrag
Donnerstag, 3. März 2016, 17:45–18:05, VMP6 HS C
Binary Neutron Stars with Generic Spin and Mass ratio — •Tim Dietrich1,2, Niclas Moldenhauer2, Nathan Johnson-McDaniel3, Sebastiano Bernuzzi4,5, Charalampos Markakis6, Bernd Brügmann2, and Wolfgang Tichy7 — 1Max-Planck-Institut for Gravitational Physics, Albert-Einstein-Institut, D-14476 Golm, Germany — 2Theoretical Physics Institute, University of Jena, 07743 Jena, Germany — 3International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bengaluru 560012, India — 4DiFeST, University of Parma, and INFN Parma, I-43124 Parma, Italy — 5Theoretical Astrophysics, California Institute of Technology, 1200 E California Blvd, Pasadena, California 91125, USA — 6Mathematical Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom — 7Department of Physics, Florida Atlantic University, Boca Raton, FL 33431 USA
Binary neutron star mergers are associated with a variety of observable phenomena in the gravitational and electromagnetic spectra. We investigate such systems in the last milliseconds before and after their merger with full 3D numerical simulations. We focus on previously inaccessible regions of the binary neutron star parameter space and discuss as exemplary cases results for the highest mass ratio simulation in full general relativity and the first precessing binary neutron star merger. We find that both setups show interesting new physics, e.g, mass transfer during the inspiral or precession induced oscillations in subdominant modes of the gravitational wave signal.