**We welcome everyone to this event, from upper-level undergraduate students, post-docs and faculty to the general public. Come join us!**
Event Information:
TALK RECORDING AVAILABLE AT: https://drive.google.com/file/d/1l4DQfOrOuK3dQUECHt1DjAeEUpj4ovnF/view?usp=share_link
Abstract:
Core-collapse supernovae are violent explosions of massive stars. They are usually brighter than their host galaxies, and astronomers observe them daily. However, the mechanism driving these explosions is still unknown. Gravitational waves and neutrinos are the only means directly probing the central engines of these spectacular events. I will present the results of the search for gravitational waves in the data from the third observing run of LIGO-Virgo. We analyzed the data around the explosion time of supernovae observed optically at distances up to 30 Mpc. We have not found any gravitational waves, so we constrain the properties of the explosion's central engine, such as upper limits on the emitted gravitational wave energy and power. For a population of the analyzed supernovae, we constrain the possible core deformation and exclude parameter space of extreme emission models.
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2023-02-13T11:00:002023-02-13T12:00:00Observational constraints of the core-collapse supernova engine with the gravitational-wave data Event Information:
TALK RECORDING AVAILABLE AT: https://drive.google.com/file/d/1l4DQfOrOuK3dQUECHt1DjAeEUpj4ovnF/view?usp=share_link
Abstract:
Core-collapse supernovae are violent explosions of massive stars. They are usually brighter than their host galaxies, and astronomers observe them daily. However, the mechanism driving these explosions is still unknown. Gravitational waves and neutrinos are the only means directly probing the central engines of these spectacular events. I will present the results of the search for gravitational waves in the data from the third observing run of LIGO-Virgo. We analyzed the data around the explosion time of supernovae observed optically at distances up to 30 Mpc. We have not found any gravitational waves, so we constrain the properties of the explosion's central engine, such as upper limits on the emitted gravitational wave energy and power. For a population of the analyzed supernovae, we constrain the possible core deformation and exclude parameter space of extreme emission models.Event Location:
Henn 318