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<p class="MsoNormal">Dear all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This is a gentle reminder of Cis' seminar taking place in 30 minutes at 10:30 in FC61 (AlbaNova building, 6th floor) and on zoom (<a href="https://stockholmuniversity.zoom.us/j/61550693125">https://stockholmuniversity.zoom.us/j/61550693125</a>).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Alla-at-astro.su.se <alla-at-astro.su.se-bounces@lists.su.se>
<b>On Behalf Of </b>Mingjie Jian via Alla-at-astro.su.se<br>
<b>Sent:</b> Monday, September 16, 2024 10:31<br>
<b>To:</b> alla@astro.su.se; seminars-announce.astro-at-su.se@lists.su.se<br>
<b>Subject:</b> [alla@astro.su.se] Astronomy departmental seminar September 20 at 10:30am - Cis Raf Lagae (Stockholm University)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Dear all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The next weekly SU astronomy departmental seminar that will take place this Friday September 20, at 10:30am in room FC61 (AlbaNova building, 6th floor) and on zoom (<a href="https://stockholmuniversity.zoom.us/j/61550693125">https://stockholmuniversity.zoom.us/j/61550693125</a>).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">————————————————————<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Speaker: Cis Raf Lagae (Stockholm University)<o:p></o:p></p>
<p class="MsoNormal">Title: The metal-poor universe in 3D non-LTE<o:p></o:p></p>
<p class="MsoNormal">Event: <a href="https://indico.fysik.su.se/event/8823/">https://indico.fysik.su.se/event/8823/</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Abstract: I will present an overview of the research carried out during my PhD which focused on metal-poor, low-mass Milky Way stars, aiming to understand the nature of the first stars and galactic chemical evolution. To reach this goal,
we require knowledge of the chemical composition of (metal-poor) stars, which are conventionally determined from a simple 1D LTE abundance analysis. To reduce large systematic errors in abundance measurements and prevent erroneous conclusions, it is necessary
to compute synthetic spectra in non-LTE and with 3D stellar atmospheres, simultaneously. For this purpose, I have updated the STAGGER-grid of 3D model atmospheres in the subgiant region (logg<3.5) and prepared the STAGGER-grid for public release. In addition,
I am working on a grid of 3D non-LTE spectra of the Ca II triplet lines, which are commonly used for abundance analysis and radial velocity determination in metal-poor stars.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Zoom ID: 615 5069 3125<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">—————————————————————<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We look forward to seeing many of you there. Thanks!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Anjasha and Mingjie<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Upcoming Events:<o:p></o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo3">Sep 27 Jonathan Henshaw
<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo3"><s>Oct 04</s>
<i>No seminar due to Astronomdagarna 2024</i><o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo3">Oct 11 Ayan Acharyya<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo3">Oct 18 Maria Ramirez<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">You can subscribe to the seminars calendar in:<o:p></o:p></p>
<p class="MsoNormal"><a href="https://ttt.astro.su.se/ical/astro-seminars.ics">https://ttt.astro.su.se/ical/astro-seminars.ics</a><o:p></o:p></p>
<p class="MsoNormal">(Please note that calendar can be subject to updates)<o:p></o:p></p>
<p class="MsoNormal">___________________<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Join Zoom Meeting<o:p></o:p></p>
<p class="MsoNormal"><a href="https://stockholmuniversity.zoom.us/j/61550693125">https://stockholmuniversity.zoom.us/j/61550693125</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Meeting ID: 615 5069 3125<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">** Just a small note for the people who prefer slack in OKC, we have created a channel here -
<a href="https://join.slack.com/share/enQtNzY4MzA3MjEzNDA1NC05M2NiY2UzOGRiZjY0YTFhZDZjMzA1ZjkwZjJjYTBiM2JhNzExOGVmMDlkYTBkNjMxMmY3ZTdiY2UzNjcxNzk3">
https://join.slack.com/share/enQtNzY4MzA3MjEzNDA1NC05M2NiY2UzOGRiZjY0YTFhZDZjMzA1ZjkwZjJjYTBiM2JhNzExOGVmMDlkYTBkNjMxMmY3ZTdiY2UzNjcxNzk3</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We will be posting updates there as well.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Mingjie Jian<o:p></o:p></p>
<p class="MsoNormal">Postdoctoral Researcher<o:p></o:p></p>
<p class="MsoNormal">Department of Astronomy<o:p></o:p></p>
<p class="MsoNormal">Stockholm University<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">AlbaNova University Center<o:p></o:p></p>
<p class="MsoNormal">Roslagstullsbacken 21,<o:p></o:p></p>
<p class="MsoNormal">114 21 Stockholm, Sweden<o:p></o:p></p>
<p class="MsoNormal"><a href="mailto:mingjie.jian@astro.su.se">mingjie.jian@astro.su.se</a>
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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