Electromagnetic Counterparts from Tilted Magnetized Binary Neutron-Stars Mergers

Recent studies have demonstrated that the interaction of magnetospheres in binary neutron star systems can radiate strongly electromagnetically [1,2]. We study here a broader set of configurations accounting for tilted/misaligned dipoles in coalescing binaries and analyze the resulting Poynting flux and its correlation to the dynamics. In particular, the misalignment of the dipoles results in a very dynamic system with magnetic reconnections, sheer layers, and current sheets. The electromagnetic radiation displays a distinctive pulsating behaviour tied to the orbital dynamics and stellar dipole orientations and the overall power of this radiation. \\ ~[1] C.~Palenzuela, L.~Lehner, M.~Ponce, S.~L.~Liebling, M.~Anderson, D.~Neilsen and P.~Motl, Phys.\ Rev.\ Lett.\ {\bf 111}, 061105 (2013) \\ ~[2] C.~Palenzuela, L.~Lehner, S.~L.~Liebling, M.~Ponce, M.~Anderson, D.~Neilsen and P.~Motl, Phys.\ Rev.\ D {\bf 88}, 043011 (2013)