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<p><span style="font-size:12pt; font-family:"Calibri Light","Helvetica Light",sans-serif">Dear all</span><span style="font-size:12pt; font-family:"Calibri Light","Helvetica Light",sans-serif">,</span><br>

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<div style="color:rgb(255,255,255); font-family:Helvetica; font-size:12px"><span style="color:rgb(0,0,0); font-family:"Calibri Light","Helvetica Light",sans-serif,serif,EmojiFont; font-size:16px">This is Smaranika on behalf of extreme object group meeting organisers.</span><span style="color:rgb(0,0,0)"><span style="font-size:12pt; color:rgb(0,0,0); font-family:"Calibri Light","Helvetica Light",sans-serif"><br>

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<div style="color:rgb(255,255,255); font-family:Helvetica; font-size:12px"><span id="docs-internal-guid-3aff2bf2-7fff-7baf-3f16-0caaa66c0b52" style="color:rgb(0,0,0)">

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">This is a kind reminder of this weeks talk!</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap"><br>

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<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap"><b>When and where:</b> Thursday 29th of February, 13:15 in A5:1003</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap"><b>Speaker:</b> Bart van Baal</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap"><b>Title:</b>Developing spectral synthesis in 3D</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap"><b>Abstract:</b></span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">The nebular phase of a supernova is a phase rich with information on the ejecta</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">composition and with it, the progenitor system. With many intricate physical</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">processes playing important roles, making models for the nebular phase is a</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">complex task which is usually only done in 1D. Recently however, the first late-</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">time 3D core-collapse models have become available to use as input models for</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">nebular phase calculations. Using these 3D inputs requires the development of

 a</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">3D nebular phase code. In this talk I will both highlight my latest results with</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">my 3D code ExTraSS (EXplosive TRAnsient Spectral Simulator) as well as outline</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">how I approached the designing of this code, as the step from 1D to 3D is</span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">computationally challenging for these detailed nebular phase calculations.</span></p>

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<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">Note that our meeting time has changed from

</span><span style="font-size:11pt; font-family:Arial,sans-serif; font-style:italic; vertical-align:baseline; white-space:pre-wrap"><b><u>Thursdays 13:00 to 13:15 from now on.</u></b></span></p>

<p dir="ltr" style="line-height:1.38; margin-top:0pt; margin-bottom:0pt"><span style="font-size:11pt; font-family:Arial,sans-serif; vertical-align:baseline; white-space:pre-wrap">See you all this week. </span></p>

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<span style="color:rgb(0,0,0)"><span style="font-size:12pt; color:rgb(0,0,0); font-family:"Calibri Light","Helvetica Light",sans-serif">Kind r</span><span style="font-size:12pt; color:rgb(0,0,0); font-family:"Calibri Light","Helvetica Light",sans-serif">egards,</span></span><br>

<span style="color:rgb(0,0,0); font-family:"Calibri Light","Helvetica Light",sans-serif; font-size:12pt">Smaranika</span></div>

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Dr. Smaranika Banerjee</span></font><font face="Helvetica,serif,EmojiFont" size="1" color="#212121"><span style="font-size:12pt; color:rgb(0,0,0); font-family:"Calibri Light","Helvetica Light",sans-serif"><br>

Astronomy Department, Stockholm University</span></font></span></font></div>

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