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Dear all,<br>
<br>
This is a reminder of the weekly SU astronomy departmental seminar
that will take place in about 45 minutes,
<b>at 10:30am in room FC61</b> (AlbaNova building, 6th floor) <b>and
on zoom</b> (<a
href="https://stockholmuniversity.zoom.us/s/61002076352"
target="_blank" rel="noopener noreferrer" id="LPlnk88844"
class="moz-txt-link-freetext">https://stockholmuniversity.zoom.us/s/61002076352</a>).
As usual, we encourage you to attend in person if possible.<br>
<br>
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Speaker: Prof. Hendrik C. Spruit (Max Planck Institute for
Astrophysics)<br>
Title: Historical overview (and misconceptions) of convection in
solar/stellar atmospheres<br>
Event: <a class="moz-txt-link-freetext" href="https://indico.fysik.su.se/e/hendrik-spruit">https://indico.fysik.su.se/e/hendrik-spruit</a><br>
<br>
Abstract:<br>
Controversial discussions about the nature of the Sun's
granulation date back almost a century. How can a flow with a
Reynolds number of 10^12 look more like a bowl of soup than
ferocious turbulence? After a historical overview I discuss how
the answer is closely related to a misconception about the forces
that drive the granulation as they are observed in ever improving
observations and realistic numerical simulations. A closer look at
this problem also explains the so-called 'convection conundrum':
the discrepancy between results from helioseismic measurements of
subsurface flows' on the one hand and 'whole convection zone'
simulations on the other.<br>
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<br>
We look forward to seeing many of you there. Thanks!<br>
<br>
Adur and Adélaïde<br>
<br>
Upcoming Events:<br>
<br>
2023-09-28 Nestor Espinoza (<b>**DIFFERENT DATE AND PLACE!!**</b>)<br>
2023-10-06 Matilde Mingozzi<br>
2023-10-13 Guillaume Guiglion<br>
<br>
You can subscribe to the seminars calendar in:
<a class="moz-txt-link-freetext" href="https://ttt.astro.su.se/ical/astro-seminars.ics">https://ttt.astro.su.se/ical/astro-seminars.ics</a><br>
(Please note that calendar can be subject to updates)<br>
<br>
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Join Zoom Meeting:<br>
<a class="moz-txt-link-freetext" href="https://stockholmuniversity.zoom.us/s/61002076352">https://stockholmuniversity.zoom.us/s/61002076352</a><br>
Meeting ID: 610 0207 6352</div>
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