3 papers
gr-qc2020
Black hole spectroscopy for KAGRA future prospect in O5
Nami Uchikata, Tatsuya Narikawa, Kazuki Sakai +2
Ringdown gravitational waves of compact binary mergers are an important target to test general relativity. The main components of the ringdown waveform after merger are black hole…
gr-qc2018
Comparison of various methods to extract ringdown frequency from gravitational wave data
Hiroyuki Nakano, Tatsuya Narikawa, Ken-ichi Oohara +7
The ringdown part of gravitational waves in the final stage of merger of compact objects tells us the nature of strong gravity which can be used for testing the theories of gravity…
astro-ph.IM2016
Amplitude-based detection method for gravitational wave bursts with the Hilbert-Huang Transform
Kazuki Sakai, Ken-ichi Oohara, Masato Kaneyama +1
We propose a new detection method for gravitational wave bursts. It analyzes observed data with the Hilbert-Huang transform, which is an approach of time-frequency analysis constru…