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<span class="m-642861739458883080normaltextrun"><b><span style="font-size:26.0pt;font-family:"Times New Roman",serif;color:#006FC0">Physics & Astronomy Colloquium</span></b></span><o:p></o:p></p>
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</span><i><span style="font-size:26.0pt;font-family:"Times New Roman",serif">Cosmology and Galaxy Formation at the Crossroads</span></i><o:p></o:p></p>
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</span><span class="m-642861739458883080normaltextrun"><b><i><span style="font-size:28.0pt;font-family:"Times New Roman",serif">Dr. Mike Boylan-Kolchin</span></i></b></span><o:p></o:p></p>
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<span class="m-642861739458883080normaltextrun"><b><span style="font-size:28.0pt;font-family:"Times New Roman",serif">University of Texas at Austin</span></b></span><o:p></o:p></p>
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<span style="font-size:12.0pt;font-family:"Times New Roman",serif">Abstract: We find ourselves at a pivotal era in the study of cosmology and galaxy formation. The dark energy + cold dark matter (ËCDM) paradigm is firmly established as the default cosmological
model, owing in large part to its incredible success in explaining the large-scale distribution of matter and energy in Universe, yet the nature of both dark energy and dark matter remain deep mysteries. The successes of ËCDM have also focused attention on
its potential shortcomings, which may indicate the need for minor adjustments to the theory or may presage its breakdown and more substantive revisions to our baseline model of the cosmos. I will discuss some of the areas of potential discord between observations
and ËCDM expectations, including JWST results on high-redshift galaxies and measurements of the expansion rate of the Universe. I will also explore how current and forthcoming facilities either will further solidify ËCDM as the standard cosmological paradigm
or signal a paradigm shift in our basic understanding of the Universe.<o:p></o:p></span></p>
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<span class="m-642861739458883080normaltextrun"><b><span style="font-size:18.0pt;font-family:"Times New Roman",serif;color:#2F5496">Thursday, June 8th, 2023</span></b></span><o:p></o:p></p>
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<span class="m-642861739458883080normaltextrun"><b><span style="font-size:18.0pt;font-family:"Times New Roman",serif;color:#2F5496">3:40 PM in Winston Chung Hall (Room 138)</span></b></span><o:p></o:p></p>
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<span class="m-642861739458883080normaltextrun"><b><span style="font-size:18.0pt;font-family:"Times New Roman",serif;color:#2F5496">Coffee will be served at 3:10 PM in the Barkas Lounge (3049 Physics)</span></b></span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Heather McDermott</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Travel & Event Coordinator</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Physics & Astronomy Dept.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">University of California Riverside</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Ph: 951-827-6169</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black"><a href="mailto:heatherm@ucr.edu"><span style="color:#0563C1">heatherm@ucr.edu</span></a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-family:"Tahoma",sans-serif;color:red;text-transform:uppercase;letter-spacing:2.0pt">AVAILABLE VIA ZOOM </span></b><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-family:"Tahoma",sans-serif;color:red;text-transform:uppercase;letter-spacing:2.0pt">FOR VIRTUAL OFFICE </span></b><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-family:"Tahoma",sans-serif;color:red;text-transform:uppercase;letter-spacing:2.0pt">HOURS AT:</span></b><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Helvetica;color:#232333;background:white"><a href="https://ucr.zoom.us/my/heathermcdermott" title="https://ucr.zoom.us/my/heathermcdermott"><span style="color:#0563C1">https://ucr.zoom.us/my/heathermcdermott</span></a></span><o:p></o:p></p>
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