Astronomy Colloquium
Colloquia are held every Wednesday during the academic year at 4pm in the Cahill Hameetman auditorium. Wine and cheese will be served in the Cahill Foyer from 5-5:30pm.
Astronomy Colloquium
There is now an amalgam of observational evidence that massive stars undergo enhanced and/or eruptive mass-loss in their final years before explosion. In this talk, I will discuss how multi-wavelength observations of type II supernovae both before and after explosion can be utilized to probe the late-stage evolution of massive stars from months-to-millennia before core collapse. I will highlight ongoing observational efforts within the Zwicky Transient Facility (ZTF) to autonomously identify and trigger multi-wavelength follow-up within days of explosion as well as discuss the new synthesis between ZTF and LSST that is being used for young supernova discovery. Additionally, I will describe recent results from panchromatic studies of type II supernovae at years-to-decades post-explosion and how such observing campaigns, coupled with state-of-the-art radiative transfer modeling, can quantify shock physics and the unknown late-stage mass-loss rates of red supergiant stars.
Astronomy Colloquium
Juno arrived in orbit around Jupiter in July 2016, and the data it returned immediately began overturning what we thought we knew about the interior and atmosphere of the solar system's largest planet. In this talk I will pick the four most amazing (to me) things Juno data has taught us, and what implications it holds for interpreting data on giant planets elsewhere.