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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Nirmala UI",sans-serif">Good afternoon,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Nirmala UI",sans-serif">See below for details on today's seminar.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Nirmala UI",sans-serif">Thank you,<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From:</span></b><span style="font-size:12.0pt;color:black"> Lamar, Erica<br>
<b>Sent:</b> Tuesday, May 6, 2025 10:23 AM<br>
<b>To:</b> Physics Personnel; Physics Guests & Visitors; CAD Personnel List; Discovery Technologies AH; IP Personnel List<br>
<b>Subject:</b> Physics Colloquium on "Cosmology from Three Years of DESI Spectroscopy"
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<p style="margin-bottom:12.6pt"><b><span style="font-size:21.0pt;font-family:"Roboto",serif;color:#333333">Physics Colloquium</span></b><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
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<p style="margin-bottom:8.65pt"><span style="font-size:20.0pt;font-family:"Roboto",serif;color:#333333">"Cosmology from Three Years of DESI Spectroscopy"</span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p style="margin-bottom:9.6pt"><span style="font-size:14.5pt;font-family:"Roboto",serif;color:#111111">Presented by Prof. Kyle Dawson, Univ. of Utah</span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p style="margin-bottom:.25in"><span style="font-size:11.5pt;font-family:"Roboto",serif;color:#494B4D">Tuesday, May 6, 2025, 3:30 pm — Large Seminar Room, Bldg. 510</span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p style="margin-bottom:.25in"><span style="font-size:10.5pt;font-family:inherit;color:#494B4D">Please note that self-served coffee and cookies will be in the seminar lounge at 3:00 pm. Abstract: Over a five-year period, the Dark Energy Spectroscopic Instrument
(DESI) will spectroscopically classify nearly 40 million galaxies and quasars over 1/3 of the sky and to redshifts z < 3.5. The DESI collaboration has completed measurements of the baryon acoustic oscillation (BAO) feature and more generally, of large-scale
structure, using data from the first three years of observation. In this talk, I will present those measurements and their implications for our understanding of the cosmological model. In doing so, I will discuss the DESI measurements with respect to the hints
of tension that have been reported in the Hubble Constant and with LCDM. Non-BNL individuals interested in attending this event are reminded that gate passes should be requested.</span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p style="margin-bottom:.25in"><span style="font-size:11.5pt;font-family:"Roboto",serif;color:#494B4D">Hosted by: Raju Venugopalan</span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:white;background:#00ADDC"><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__bnl.zoomgov.com_j_1617489674-3Fpwd-3DaTmhSZ1ncKD7wWlqQ2iHfoTniiAlOX.1&d=DwMFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=d0KG5O9luo0FhuYP-_C2VbpBNln9iudksZOBnX13nypLFx5Y3VKB85tQJ8VLc-jR&m=CYNWWIvLtQhzEYmfCLF81RR5eK2ZARWMwIRwsATkQYEULDONOzjKsLWWQDKSgu3w&s=JWyNJ1xBkIKlFu7tiX2j1DT2b7Ov7db_JsDk4mb34qU&e=" title="Videoconference URL"><span style="color:white"> Join Videoconference</span></a></span></b><span style="font-size:11.5pt;font-family:"Roboto",serif;color:#494B4D"> </span><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:white;background:#00ADDC"><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__indico.bnl.gov_event_27724_&d=DwMFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=d0KG5O9luo0FhuYP-_C2VbpBNln9iudksZOBnX13nypLFx5Y3VKB85tQJ8VLc-jR&m=CYNWWIvLtQhzEYmfCLF81RR5eK2ZARWMwIRwsATkQYEULDONOzjKsLWWQDKSgu3w&s=GX7ApIWlDzzlkZKvaNi739cPd1fjIIYJiuO2-1BeNsM&e=" title="Website for More Information"><span style="color:white"> More
Information</span></a></span></b><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p><span style="font-size:12.0pt;font-family:Aptos"> <o:p></o:p></span></p>
<p><span style="font-size:12.0pt;font-family:Aptos">Thank you,<o:p></o:p></span></p>
<p><span style="font-size:12.0pt;font-family:Aptos">Erica<o:p></o:p></span></p>
<p style="background:white"><span style="font-size:18.0pt;font-family:"Brush Script MT";color:#1F4E79">Erica Lamar </span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p style="background:white"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1F4E79">Brookhaven National Laboratory</span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p style="background:white"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1F4E79">Physics Department</span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p style="background:white"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1F4E79">Building 510A</span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p style="background:white"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1F4E79">Upton, NY 11973-5000</span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p style="background:white"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1F4E79">(631) 344-2585</span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p style="background:white"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1F4E79"><a href="mailto:elamar@bnl.gov"><span style="color:#1F4E79">elamar@bnl.gov</span></a></span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p style="background:white"><span style="color:black"> </span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
<p style="background:white"><span style="color:black"><img border="0" width="204" height="48" style="width:2.125in;height:.5in" id="x_Picture_x0020_1" src="cid:image002.png@01DBBE88.4E5E1560"></span><span style="font-size:12.0pt;font-family:Aptos"><o:p></o:p></span></p>
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