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<p>Hi everyone,</p>
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<p>We will have our next PASS on <b>Monday, October 24</b> with an
interesting talk by Garett. Please join us at noon (<b>from 12:00
to 1:00 pm</b>) in the <b>Nebula Room</b> (PHYS 3027). </p>
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<p align="center"><b>Garett Lopez, PhD Candidate<br>
</b>Monday, 12:00 pm, Nebula Room (PHYS 3027)</p>
<p align="center"><b>What the CMB and Lyman-Alpha forest can teach
us about reionization and early galaxies </b></p>
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<div align="center">A key result from JWST’s first two cycles is
that galaxy formation was well underway by z=10. The implications
of these early galaxies for reionization are less clear, however,
owing to the difficulty of inferring their ionizing outputs from
their non-ionizing spectral characteristics. CMB measurements are
still our best way to constrain the ionization state of the IGM
during reionization’s first half, providing an important window
into the sources of ionizing photons at those times. In this talk,
I will introduce the reionization-CMB connection and use radiative
transfer simulations to discuss how measurements of the patchy
kinetic Sunyaev Zel’dovich (pkSZ) effect can be used to constrain
the early stages of reionization, especially when combined with
Lyman-alpha forest constraints on reionization's end. I will also
highlight how pkSZ measurements can complement JWST's direct
observations of the galaxy population and improve our
understanding of the ionizing sources during cosmic dawn.</div>
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id="m_-7314571423100097885m_-3414541767872711075m_9215603032040371864m_-1672972118947443868gmail-:1f4">
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<div dir="ltr">If you’re interested in sharing your work as a
speaker, please feel free to add your name to this spreadsheet
[<a
href="https://docs.google.com/spreadsheets/d/1N3ncf43jdB6aHYHhyWmyHMycxDg4_phHZXLkQvviO0o/edit?usp=sharing"
target="_blank">Google Sheet</a>]. Recordings of all the
previous talks are available on our website: <a
href="https://ucrpass.arxiv.social/" target="_blank"
class="moz-txt-link-freetext">https://ucrpass.arxiv.social</a>
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Best,<br>
Pooyan<br>
Physics and Astronomy Student Seminar (<span><span>PASS</span></span>)
<br>
<a href="https://ucrpass.arxiv.social/" target="_blank"
class="moz-txt-link-freetext">https://ucrpass.arxiv.social</a></div>
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