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<p>Correction: Time & location: Friday 29/3, 10:30 in FC61<br>
</p>
<div class="moz-cite-prefix">On 2019-03-25 05:56, Alexis Brandeker
wrote:<br>
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<div class="PlainText">Astronomy seminar<br>
================<br>
<br>
Time & location: Friday 22/3, 10:30 in FC61<br>
<br>
Speaker: Emilia Kilpua (Helsinki)<br>
<br>
Title: Determining magnetic field in coronal mass ejection
flux ropes<br>
<br>
Abstract:<br>
The knowledge of the magnetic field structure of coronal
mass ejections <br>
(CMEs) is crucial for understanding their early dynamics and
eruptions <br>
as well as predicting their space weather effects at Earth.
For <br>
example, this information is crucial for constraining the
flux rope <br>
parameters both in first-principle space weather simulations
(e.g, <br>
ENLIL, EUHFORIA and SUSANOO-CME) and in semi-empirical CME
models. At <br>
the University of Helsinki Space Physics team we are
developing both <br>
observational schemes and fully data-driven simulations to
estimate the <br>
initial magnetic field in CME flux ropes. Observational
scheme combines <br>
several indirect proxies, while our data-driven simulations
uses a <br>
time-dependent magnetofrictional modelling (TMFM) approach
to estimate <br>
the field self-consistently. In this seminar I will discuss
the “Bz <br>
problem” from a space weather point of view and present the
above <br>
mentioned activities within the team.<br>
<br>
Emilia will be hosted by Sanja Danilovic.<br>
<br>
Other upcoming Friday activities:<br>
<br>
5/4 (Fri) @ 10:30: Christian Herenz (SU)<br>
12/4 (Fri) : Open slot, NO SEMINAR scheduled (yet)<br>
26/4 (Fri) @ 10:30: Ernst de Mooij (Dublin)<br>
26/4 (Fri) @ 13:00: PhD defence of Tine Libbrecht in FB52<br>
<br>
All welcome!<br>
Alexis Brandeker (Astronomy seminar organiser VT
2019)<br>
<br>
<br>
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