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<div>Dear colleagues, <br>
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our next EO meeting will take place this Thursday, Nov 07 at 13:15.</div>
<div>The meeting will take place at the KTH meeting room on the 5th floor of the AlbaNova University Centre. </div>
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<div>Speaker: <b>Davide Gizze</b><br>
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<div style="margin-top:0;margin-bottom:0;">Title: Modeling neutrino transport in binary neutron star mergers</div>
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<div style="margin-top:0;margin-bottom:0;">Abstract: </div>
<div style="margin-top:0;margin-bottom:0;">Neutrinos, copiously produced in the hot environment of merging neutron stars, play an important role in the dynamics of a merger. In particular, neutrino absorption drives mass ejection, the so called neutrino-driven
winds. Moreover, neutrinos reprocess the electron fraction in the ejecta from a neutron star merger, with consequent impact on the nucleosynthesis of the r-process nuclei. The electron fraction in neutrino-driven winds is such that only a weak r-process occurs.
The detection of a bright blue kilonova from GW170817 was a clear signature of the presence of weak interactions in mergers. <font size="3"><span style="font-size:12pt;">Modeling neutrino-driven winds is therefore crucial for future kilonovae detections.
</span></font>In this talk, I will first introduce the </div>
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<div style="margin-top:0;margin-bottom:0;">challenging topic of neutrino <font size="3"><span style="font-size:12pt;">transport.</span></font> I will then focus on an approximate neutrino transport approach called Advanced Spectral Leakage (ASL). The ASL was
initially designed for neutrino transport in the context of core-collapse supernovae simulations. I will describe how we extended the original implementation of the ASL to model neutrino-driven winds in neutron star merger simulations, together with numerical
tests performed over snapshots.</div>
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See you there!</div>
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<p style="font-size:16px; font-family:Calibri,Helvetica,sans-serif">---------------------------------</p>
<p style="font-size:16px; font-family:Calibri,Helvetica,sans-serif">André da Silva Schneider<br>
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<p style="font-size:16px; font-family:Calibri,Helvetica,sans-serif"><span style="font-size:10pt; font-family:Calibri,Helvetica,sans-serif,serif,EmojiFont">Department of Astronomy</span><br>
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<p style="font-size:16px; font-family:Calibri,Helvetica,sans-serif"><span style="font-family:Calibri,Helvetica,sans-serif,serif,EmojiFont"><span style="font-size:10pt">Stockholm University</span></span></p>
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