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<div dir="ltr">Hi everyone, <span></span></div>
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<div dir="ltr">Reminder of the lunch talk today at 1pm in A113. <span id="ms-outlook-ios-cursor"></span></div>
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<div dir="ltr">Thanks, </div>
<div dir="ltr">Mikey</div>
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Sent from <a href="https://aka.ms/o0ukef">Outlook for iOS</a></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Michael Anderson Jennings<br>
<b>Sent:</b> Monday, March 10, 2025 11:18:18 AM<br>
<b>To:</b> astro@nottingham.ac.uk <astro@nottingham.ac.uk><br>
<b>Subject:</b> Lunch Talk</font>
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<div>Hi Everyone,</div>
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<div class="x_elementToProof">This week's lunch talk will be given by Jen, on Thursday at 1pm in A113. Title and abstract are below.</div>
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<p class="x_elementToProof"><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:black"><b>The Peculiar Velocity Effect in 21cm Lightcones</b></span></p>
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<p class="x_elementToProof"><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:black"><i>The 21cm brightness temperature during the Epoch of Reionisation is widely modelled using semi-numeric
simulations. They are used for their computational speed and flexibility to test different astrophysical and cosmological parameters. However, these simulations often make assumptions in order to reduce computational costs. In particular the peculiar velocity
effect is considered separately to lightcone effects. We highlight the importance of considering these effects in conjunction with each other. Especially when looking at the 1D power spectrum at large k scales. Here we see a boost in power of >300 % (>70%)
in the Epoch of Reionisation (Cosmic Dawn), which is recoverable after the addition and removal of diffuse radio foregrounds and SKAO-like instrumental noise.</i></span></p>
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Thanks,</div>
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Mikey</div>
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<b>Mikey Anderson Jennings</b></div>
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<b>Astronomy PhD Student </b></div>
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<b>University of Nottingham</b></div>
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<b>Centre for Astronomy and Particle Theory<br>
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