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<div class="moz-cite-prefix">On 2019-03-18 09:08, 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: Sofie Liljegren (SU)<br>
<br>
Title: Stellar winds of cool giants<br>
<br>
Abstract:<br>
Exploring and understanding the lives and deaths of stars
are <br>
fundamental goals of astronomical research. Stars in the
late stages of <br>
stellar evolution are of particularly interest as they are
major sites <br>
for nucleosynthesis, where the processed material later
returned to the <br>
cosmic matter cycle is produced. Massive stars are the main
contributors <br>
of heavy elements through supernova explosions, but <br>
low-to-intermediate-mass giants are believed to be
responsible for at <br>
least one third of all the carbon produced, a significant
fraction of <br>
the heavier s-process elements as well as (possibly?) a
significant <br>
amount of cosmic dust. Such stars are also (maybe?)
progenitors to type <br>
1A supernovae. It is of great importance to not only observe
but also <br>
describe these cool giants with realistic models based on
first <br>
principle. In this seminar I will present the main results
from my PhD <br>
thesis, where I theoretically explore the dynamics and
mass-loss <br>
mechanism of low-to-intermediate mass stars on the
Asymptotic Giant <br>
Branch (AGB).<br>
<br>
Other upcoming Friday activities:<br>
<br>
29/3 (Fri) @ 10:30 : Emilia Kilpua (Helsinki)<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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