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<p>On Friday, March 25th at 10:30 Adélaïde Claeyssens (Stockholm
University) will be giving our next seminar.</p>
<p><b>The properties of lensed high redshift Lyman-alpha emitters</b></p>
<p>The circumgalactic medium (CGM) is closely linked to galaxy
formation and evolution, but difficult to observe in emission at
high redshift. I will present some first results from the Lensed
Lyman-Alpha MUSE Arcs Sample (LLAMAS), a large sample of >600
lensed Lyman-alpha emitters (LAEs) observed with MUSE and HST
towards massive galaxy clusters. Thanks to the strong lensing
magnification and associated gain in spatial resolution, we can
detect and characterize very faint galaxies, and the resolved
properties of line emission from the circumgalactic medium (CGM).
With such a statistical sample we can characterize Lyman-alpha
haloes as small as 0.5 kpc (correcting for the lensing effect) and
measure their intrinsic morphological properties such as extent,
ellipticity, as well as the UV morphology and spatial offsets
between the UV continuum and the Lyman-alpha emission. LLAMAS
provides unique measurements on such properties at this redshift,
beyond the reach of non-lensed deep fields, and are therefore
crucial for understanding the CGM properties at z>3.<br>
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<div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode:
space; line-break: after-white-space;" class="">We are trying
something new this year with leaving the Zoom call open after the
formal hour of the seminar is up to allow the speaker, if they
wish, to chat informally with anyone who is interested.</div>
<div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode:
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<div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode:
space; line-break: after-white-space;" class="">Thanks<br>
Chris and Carolina</div>
<div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode:
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<div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode:
space; line-break: after-white-space;" class="">Christopher Usher
is inviting you to a scheduled Zoom meeting.
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Topic: Astronomy Department Seminar - Adélaïde Claeyssens
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Time: Mar 25, 2022 10:30 AM Stockholm
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Join Zoom Meeting
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<a class="moz-txt-link-freetext" href="https://stockholmuniversity.zoom.us/j/66528043554?pwd=aWNlUGlOZCtCc01CdEpkR3FtMFlLdz09">https://stockholmuniversity.zoom.us/j/66528043554?pwd=aWNlUGlOZCtCc01CdEpkR3FtMFlLdz09</a>
<br>
<br>
Meeting ID: 665 2804 3554
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Passcode: ICiLmiNGUi
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