Figure 22: Gravitational waveforms with an increasing trend (left) or not (right panel). Initial rotation parameter is set to be , while the precollapse magnetic field is taken as  G (left panel) and  G (right panel), respectively (from [216]). The total wave amplitudes are shown by the red line, while the contribution from the magnetic fields and from the sum of hydrodynamic and gravitational parts are shown by blue and green lines, respectively (e.g., (14) and (11), (13)). Note that the bounce GW signals (( ms) are not affected by the magnetic fields significantly, and they are categorized into the so-called type I or II waveforms.