For our next ACϟJC, we'll have a special seminar from Dillon Brout (Harvard University):
Title: “Recent results from SH0ES and Pantheon+ and the future of Type Ia Supernovae as a Cosmological Probe”
Abstract: Type Ia Supernovae (SN Ia) are a central pillar of cosmology that is vital to the adoption of the LambdaCDM “Standard Model of cosmology”, but they also uniquely elucidate persistent gaps in the theory. I will detail recent monumental leaps in progress of SNIa analyses that have culminated in the Pantheon+ cosmological analysis which is an improvement of a factor of 2 over its predecessor and that is the current best measurement of the dominant energy density components of the universe and the current best constraint on extensions to LambdaCDM including evolving dark energy. Additionally I will discuss the recent Pantheon+SH0ES constraints of the local value of the Hubble Constant that are now even more robust to systematics and that have now crossed the significant 5 sigma threshold of discrepancy when compared to that of Planck+LambdaCDM. Lastly, I will summarize the lessons learned over the last 5 years and their impact on future SN Ia surveys.
The seminar will take place at the IFT Auditorium.
Our usual remote connection will also be available; we'll be sending the connection link ~30 minutes before the start, as usual.