[Astronomy seminar] Astronomy departmental seminar Friday September 22nd at 10:30am - Hendrik C. Spruit (Max Planck Institute for Astrophysics)

[Astronomy seminar announcements]

Dear all,

The next SU astronomy departmental seminar will take place on Friday September 22nd at 10:30am in room FC61 (AlbaNova building, 6th floor) and on zoom (https://stockholmuniversity.zoom.us/s/61002076352).

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Speaker: Prof. Hendrik C. Spruit (Max Planck Institute for Astrophysics)
Title: Historical overview (and misconceptions) of convection in solar/stellar atmospheres
Event: https://indico.fysik.su.se/e/hendrik-spruit

Abstract:
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.
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We look forward to seeing many of you there. Thanks!

Adur and Adélaïde

Upcoming Events:

2023-09-28 Nestor Espinoza (**DIFFERENT DATE AND PLACE!!**)
2023-10-06 Matilde Mingozzi
2023-10-13 Guillaume Guiglion

You can subscribe to the seminars calendar in: https://ttt.astro.su.se/ical/astro-seminars.ics
(Please note that calendar can be subject to updates)

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Join Zoom Meeting:
https://stockholmuniversity.zoom.us/s/61002076352
Meeting ID: 610 0207 6352

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