IPAC, located on the Caltech campus, is not under direct threat from local fires at this time, though it is subject to the effects of strong winds and poor air quality. Many members of the IPAC community have been impacted by these events, and IPAC will follow Caltech guidance on closures and safe operations. For more information, visit Caltech’s Emergency Updates page at http://www.caltech.edu/emergency.

Daniel Scolnic (Duke U.): "Tensions With Type Ia Supernovae at Low Redshift; New Experiments at High Redshift"

March

In this talk, I will first go over the still lingering (and growing) "Hubble Tension." I will review recent measurements from the Pantheon+SH0ES teams and explain recent developments since our data release. I will also discuss new work on standardizing the Tip-of-the-Red-Giant Branch measurements and how this affects interpretation of the Hubble Tension. I will then switch gears and discuss recent work planning for the LSST and Roman time-domain surveys, and the amazing revolution of data these experiments will bring. Finally I will explain how low- and high-redshift supernova data can be used together to help us nail down the mysteries of the expanding universe.

Date: 12:15 PM, March 29th, 2023

Location: MR-102 and online, please visit https://lists.ipac.caltech.edu/mailman/listinfo/seminars to sign up to get talk announcements with Zoom URLs.

Category: Science Talk