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<p>Hello<br>
</p>
<p>On Friday the 8th of April at 10:30, Fernando Buitrago (Valladolid/IA
Portugal) will be giving our next seminar. This will be a hybrid
seminar - you are welcome to either attend in person in FC61 or
via Zoom. After the seminar we will going for lunch with Fernando
at Proviant. Fernando will be visiting the department on Thursday
and Friday.<br>
</p>
<p><b>The faintest surface brightness limits of high redshift
galaxies</b></p>
<p>The Low Surface Brightness (LSB) regime is the last niche for
studies of galaxy formation and evolution. It is of outstanding
importance for investigating not only the smallest galaxies, but
also for the most massive ones. We will review the
state-of-the-art of how massive galaxies progressively change
their properties over cosmic time, and how LSB describes this mass
assembly. Going to the deepest Hubble Space Telescope fields, we
will show our latest results looking for galaxy truncations, real
galaxy edges whose existence is linked with the gas density
threshold for star formation. Therefore, we obtain a new
physically-motivated mass-size relation, whereby massive galaxies
grow by a factor of two since z = 1 while at the same time
increasing by an order of magnitude their stellar density at the
truncation position. The retrieval of these galaxy limits will be
very beneficial for the study of stellar haloes and also for
elucidating dark matter halo sizes. We will also present our
future plans for improving all these results by making use of JWST
and Euclid forthcoming data.</p>
<p>Thanks<br>
Chris and Carolina<br>
</p>
<p>Christopher Usher is inviting you to a scheduled Zoom meeting.
<br>
<br>
Topic: Astronomy Department Seminar - Fernando Buitrago
<br>
Time: Apr 8, 2022 10:30 AM Stockholm
<br>
<br>
Join Zoom Meeting
<br>
<a class="moz-txt-link-freetext" href="https://stockholmuniversity.zoom.us/j/69749792158">https://stockholmuniversity.zoom.us/j/69749792158</a>
<br>
<br>
Meeting ID: 697 4979 2158
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