paper
A Linear and Quadratic Time-Frequency Analysis of Gravitational Waves from Core-Collapse Supernovae
Hajime Kawahara, Takami Kuroda, Tomoya Takiwaki, Kazuhiro Hayama, Kei Kotake
A Linear and Quadratic Time-Frequency Analysis of Gravitational Waves from Core-Collapse Supernovae
Hajime Kawahara, Takami Kuroda, Tomoya Takiwaki, Kazuhiro Hayama, Kei Kotake
paper2018-09-30English
high frequency tradingarxiv
Description
Recent core-collapse supernova (CCSN) simulations have predicted several distinct features in gravitational-wave (GW) spectrograms, including a ramp-up signature due to the g-mode oscillation of the proto-neutron star (PNS) and an excess in the low-frequency domain (100-300 Hz) potentially induced by the standing accretion shock instability (SASI). These predictions motivated us to perform a sophisticated time-frequency analysis (TFA) of the GW signals, aimed at preparation for future observatio...
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