Scientists map gravitational wave fingerprints from stellar explosions
Researchers have decoded the gravitational wave signatures produced by core-collapse supernovae, creating a detailed blueprint for detecting these cosmic events. The work could improve how scientists identify and study distant stellar explosions, with practical implications for gravitational wave observatories like LIGO that are racing to catch these elusive signals.
Originaltitel: Low-frequency gravitational waves in three-dimensional core-collapse supernova models
<p>We discuss the low-frequency gravitational wave signals from three state-of-the-art three-dimensional core-collapse supernova models produced with the chimera supernova code. We provide a detailed derivation of the gravitational wave signal sourced from the anisotropic emission of neutrinos and provide the total (fluid-sourced and neutrino-sourced) gravitational waves signal generated in our models. We discuss the templatability of this low-frequency signal, which is useful for future work involving matched filtering for signal detection and parameter estimation.</p>