[Astronomy seminar] Astronomy departmental seminar Friday May 31 at 10:30am - Oleg Kochukhov (Uppsala University)

[Astronomy seminar announcements]

Dear all,

The next SU astronomy departmental seminar (the last one before the 
summer break) will take place on Friday, May 31 at 10:30am in room FC61 
(AlbaNova building, 6th floor) and on zoom 
(https://stockholmuniversity.zoom.us/j/62211269644?pwd=K0J2eVVMa3pTa1JVN2lyRUJPR3Rjdz09).
___________________

Speaker: Oleg Kochukhov (Uppsala University)
Title: Giant magnets in small stars. New insights into multi-scale 
nature of M-dwarf magnetic fields
Event: https://indico.fysik.su.se/e/oleg_kochukhov 
<https://indico.fysik.su.se/e/oleg_kochukhov>

Abstract: Magnetic fields play a fundamental role for the interior and 
atmospheric properties of M dwarfs and greatly influence terrestrial 
planets orbiting in the habitable zones of these low-mass stars. 
Determination of the strength and topology of magnetic fields, both on 
stellar surfaces and throughout the extended stellar magnetospheres, is 
a key ingredient for advancing stellar and planetary sciences. In this 
talk I will review magnetic field measurements applied to M dwarfs, with 
the emphasis on direct methods based on interpretation of the Zeeman 
effect signatures in high-resolution intensity and polarisation spectra. 
I will summarise results of the field strength measurements using Zeeman 
broadening studies as well as information on the global magnetic 
geometries inferred from spectropolarimetric observations. The emerging 
understanding of complex, multi-scale nature of M-dwarf magnetic fields 
will be discussed in the context of theoretical models of hydromagnetic 
dynamos and stellar interior structure altered by magnetic fields.

___________________

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

Adur and Adélaïde

Upcoming Events:

2024-06-07 **No seminar** (Klämdag)
2024-06-14 **No seminar** (PhD defense: Ivelin Georgiev)
2024-06-21 **No seminar** (Midsummer)

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)
___________________

Join Zoom Meeting:
https://stockholmuniversity.zoom.us/j/62211269644?pwd=K0J2eVVMa3pTa1JVN2lyRUJPR3Rjdz09
Meeting ID: 622 1126 9644
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.su.se/pipermail/seminars-announce.astro-at-su.se/attachments/20240527/22075930/attachment.html>