November 12, 2024

Speaker: Kyle Dawson (Univ. of Utah)

Contact Information: 

Title:  Cosmology from DESI's First Year of Large-Scale Structure Measurements

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 year of observation.  In this talk, I will present those measurements and their implications for our understanding of the cosmological model.  In particular, I will discuss the constraints on the Hubble Constant, dark energy equation of state, and summed mass of the three neutrino mass eigenstates.  In doing so, I will discuss the new and future DESI measurements with respect to the hints of tension that have been reported in the Hubble Constant and with LCDM in general.  

Visitor's room:  Peyton Hall 105A

Visit Schedule:

Monday (note different from usual Wed) :

• 9:30 a.m.: 

• 10:00 a.m:  Justin Myles

• 10:30 a.m.:  

• 11:00 a.m.: 

• 11:30 a.m.: 

• 12:00 p.m.: 

• 12:30 p.m.: Lunch (Cosmo Lunch) in Grand Central

• 1:00 p.m.: Lunch (Cosmo Lunch) in Grand Central

• 1:30 p.m.: [Suggestion] No meeting -- unscheduled buffer time block

• 2:00 p.m.:  Charlotte Ward

• 2:30 p.m.: 

• 3:00 p.m.:  Christian Kragh Jespersen (023A)

• 3:30 p.m.: 

• 4:00 p.m.: 

• 4:30 p.m.: Peter Melchior (131)

• 5:00 p.m.:

Wednesday

• 9:30 a.m.:  Michael Strauss (113 Peyton)

• 10:00 a.m:  Jamie McCullough (108 Peyton)

• 10:30 a.m.:  

• 11:00 a.m.:  Alex Amon (202 Peyton)

• 11:30 a.m.: Masa Yamamoto (108 Peyton)

• 12:00 p.m.: Rodrigo Cordova (Grand central)

• 12:30 p.m.: Lunch / Wunch 

• 1:00 p.m.: Lunch / Wunch 

Dinner Sign-up - add your name here:

Day of week (11 Nov. 2024) -- **update 2024-11-4: Prof. Dawson is not available for dinner on Wed. We'll do dinner on Mon Nov 11

1. Faculty Host: Robert Lupton

2. Postdoc Host: Justin Myles

3.  Calvin Preston

4.  Christian Kragh Jespersen

5. Miguel Montalvo

6.  Amir Siraj

7. James Sunseri

8.  Speaker

STUDENTS HAVE PRIORITY.

PLEASE NO MORE THAN 8 PEOPLE (it is more difficult to properly interact with the speaker in larger groups).