October 21, 2025

Speaker: Gilbert Holder (UIUC)

Contact Information: 

Title:  What happens when you put sky surveys in the microwave

Abstract: Surveys of the mm-wave sky are great resources for astrophysics and cosmology. Sources that have been studied include solar system objects, flaring stars, accreting black holes, dusty star forming galaxies, and galaxy clusters, while cosmological studies are done of the cosmic microwave background and how it is lensed by foreground large scale structure. I will use selections from the science program of the South Pole Telescope as examples of ongoing research in this area. 

Visitor's room: 123

Visit Schedule (Wed. Oct 22nd):

If you're not meeting in the visitor's office (Room 123), please indicate your office number.

Wednesday:

• 9:30 a.m.:  Allen 

• 10:00 a.m.:  

• 10:30 a.m.:  (optionally astro-coffee) 

• 11:00 a.m.:  Jared Siegel (can meet in vistor office, 123)

• 11:30 a.m.:  

• 12:00 p.m.: 

• 12:30 p.m.: Wunch

• 1:00 p.m.: Wunch

• 1:30 p.m.: Jo Dunkley (can pick up from Wunch and walk to Jadwin)

• 2:00 p.m.: Lyman Page (Jadwin 217)

• 2:30 p.m.: Susanna Azzoni (Jadwin 223)

• 3:00 p.m.: Suzanne Staggs (Jadwin 260)

• 3:30 p.m.:

• 4:00 p.m.: Masa Yamamoto (visitor office)

• 4:30 p.m.:

Dinner Sign-up - add your name here:

Day of week: Wednesday Oct 22nd

1. Faculty Host:  Jo Dunkley

2. Postdoc Host: Allen Foster

3. James Sunseri

4. Joelle-Marie Begin

5. Sam Day-Weiss

6.  April Cheng

7.  Jared Siegel

8.  Speaker

STUDENTS HAVE PRIORITY.

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