Full waveform model for axisymmetric black hole mergers

In this work, we present a non-general relativity full waveform for general parametrization of axisymmetric black holes by extending our previous photon sphere thorn inspiral model. Our model comprises two main components: an inspiral part obtained by using a phenomenological method in a frequency domain and a ringdown part derived from quasinormal modes associated with photon motion. For quantitatively revealing the influence of the deviation from Kerr black holes on the waveforms, we specify our model to the bumpy black holes, which are typical examples of non-general relativity black holes. The results show that the deviation from the Kerr quadrupole moment could be measured with a high accuracy. The new waveform model can be directly used to test black holes for the LIGO-Virgo-KAGRA observations, the third generation detectors, and space-borne interferometers.