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<p>Quick reminder of the seminar:<br>
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<div>At 13:15 in A5:1003.<br aria-hidden="true">
Zoom: <a target="_blank" href="https://stockholmuniversity.zoom.us/j/3575421837" rel="noopener noreferrer" style="color: #1264a3; text-decoration: none" id="LPlnk148839" previewremoved="true">
https://stockholmuniversity.zoom.us/j/3575421837</a><br>
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<b style="font-weight: 700; font-weight: 700">Speaker</b>: Liubov Kovalenko<br aria-hidden="true">
<b style="font-weight: 700; font-weight: 700">Title:</b> Rotation and Magnetic Fields in Extreme Core-Collapse Supernovae<br aria-hidden="true">
<b style="font-weight: 700; font-weight: 700">Abstract:</b><br aria-hidden="true">
Core-collapse supernovae are shaped by the interplay of gravity, neutrinos, rotation, and magnetic fields in the first seconds after collapse.<br aria-hidden="true">
While most simulations focus on neutrino-driven hydrodynamics, magnetic fields are likely essential for understanding the most rapidly rotating and extreme explosions, as well as their connection to magnetar formation.<br aria-hidden="true">
In this talk, I will present 3D simulations of an extremely compact 39-solar-mass progenitor and compare three models: a non-rotating baseline case, a rotating case without magnetic fields,<br aria-hidden="true">
and a rotating magnetized case. Although the collapse and bounce are broadly similar, the post-bounce evolution differs significantly. Rotation and magnetic fields alter the shock evolution,<br aria-hidden="true">
outflow morphology, proto-neutron-star dynamics, and the angular structure of the neutrino emission.<br aria-hidden="true">
These differences are especially important for multimessenger signals. Because the newly formed core is initially opaque to photons (and even neutrinos), gravitational waves may provide the<br aria-hidden="true">
earliest direct observational window into the proto-neutron star just after bounce. Using these models, I will discuss how rotation and magnetic fields influence both the explosion dynamics and the gravitational-wave signatures that may provide access to the
innermost post-bounce evolution.</div>
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