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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. </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, January 20, 2025 10:16:14 AM<br>
<b>To:</b> astro@nottingham.ac.uk <astro@nottingham.ac.uk><br>
<b>Subject:</b> Lunch Talk</font>
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Hi Everyone,</div>
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This week's lunch talk will be given by Mark (Ke Ma), on Thursday at 1pm in A113. Title and abstract are below:</div>
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<b>1D Lya power spectrum measurements from massive spectroscopic surveys</b></div>
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<i>The Lyman-Alpha Forest, a series of hydrogen absorption lines observed in high-redshift QSO spectra, serves as a crucial observational probe of the IGM. Measurements of the 1D power spectrum of the Lyman-Alpha transmitted flux (P_Lyα) provide valuable insights
into the thermal and ionization history of the IGM, while constraining cosmological and astrophysical parameters.</i></div>
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<i>To assess the capabilities and precision of P_Lyα measurements across various spectroscopic surveys, we have developed a comprehensive pipeline for generating mock datasets. This pipeline accounts for key observational and astrophysical effects, including
spectral resolution, instrumental noise, contamination from metal lines, high-column-density systems, continuum misplacement, and their associated systematics.</i></div>
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<i>In this talk, I will present two of my ongoing projects based on applications of these mocks. The first explores the use of WEAVE-QSO to detect signatures of the patchy reionization. The second focuses on refining models for the power spectrum of metal absorption
lines, such as Si II and Si III, which are correlated with Lyman-Alpha absorption.</i></div>
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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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