Events During the Week of August 31st through September 7th, 2025
Monday, September 1st, 2025
- Academic Calendar
- Labor Day
- Abstract: *Note: actual end time may vary.* CONTACT: admin@secfac.wisc.edu
Tuesday, September 2nd, 2025
- Department Coffee Hour
- Cookie Potluck
- Time: 2:00 pm - 3:00 pm
- Place: If the weather’s nice, we'll be the front steps (overlooking University Ave).
- Abstract: Bakers should bring a batch of their best to share! If you’re not a baker or don’t have time, just come hang out with us for a bit to have a cookie or two (we always have plenty!). For the bakers, it’d be helpful if you can mark your goodies with an allergens list (especially helpful to mark nuts/no nuts, dairy-free, gluten-free, etc.).
- Host: Sharon Kahn
Wednesday, September 3rd, 2025
- Academic Calendar
- Fall semester instruction begins
- Abstract: *Note: actual end time may vary.* CONTACT: admin@secfac.wisc.edu
- Department Meeting
- Time: 12:15 pm - 1:15 pm
- Place: B343 Sterling
- Speaker: Kevin Black, UW-Madison
- Host: Kevin Black
Thursday, September 4th, 2025
- No events scheduled
Friday, September 5th, 2025
- Preliminary Exam
- Understanding the production of astrophysical neutrinos in X-ray dense and gamma-ray obscured environments
- Time: 10:00 am - 12:00 pm
- Place: 5280 Chamberlin
- Speaker: Arifa Khatee Zathul, Physics PhD Graduate Student
- Abstract: The IceCube Neutrino Observatory has detected the first sources contributing to the diffuse flux of astrophysical neutrinos discovered in 2013. In this talk, I will present evidence that these neutrinos originate in the innermost regions of active galactic nuclei, where the X-ray corona surrounding the supermassive black hole acts as the target for photohadronic interactions. Using multiwavelength data, I will also argue that sources are gamma-ray obscured during neutrino production episodes. This is supported by constraints placed by IceCube's diffuse neutrino flux measurement using the Enhanced Starting Track Event Selection (ESTES), Medium Energy Starting Events (MESE), and CombinedFit datasets.
- Host: Francis Halzen
- Graduate Program Event
- PGSC Headshot Event
- Time: 12:30 pm - 3:30 pm
- Place: Botany Garden
- Abstract: The Physics Graduate Student Counsil (PGSC) hosts a headshot event each year where every graduate student can get their headshot done for free! This is a great opportunity if you need a photo of yourself for the physics directory, your LinkedIn profile, or any professional setting. You do not need to sign up for this in advance. Just show up with your dazzling smile!
Rain date: September 26th.
Feel free to email me at jlin475@wisc.edu if you have any questions or concerns!
- Host: Joyce Lin (PGSC Chair of Prof Dvlpmt)
- Physics Department Colloquium
- State of the Department
- Time: 3:30 pm - 4:30 pm
- Place: Chamberlin 2241
- Speaker: Kevin Black, University of Wisconsin-Madison
- Host: Mark Saffman