<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<p>Reminder - Fernando's seminar is in half an hour in FC61 or on
Zoom<br>
</p>
<div class="moz-cite-prefix">On 04/04/2022 11:48, Chris Usher wrote:<br>
</div>
<blockquote type="cite"
cite="mid:cde369de-8c14-c1f9-3deb-3dbee361ba58@astro.su.se">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<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"
moz-do-not-send="true">https://stockholmuniversity.zoom.us/j/69749792158</a>
<br>
<br>
Meeting ID: 697 4979 2158 </p>
</blockquote>
</body>
</html>