The After Sloan-V (AS5) Survey is a next-generation, dual-hemisphere spectroscopic program designed to address fundamental questions in astrophysics by combining full sky coverage, time-domain sampling, and multi-wavelength spectroscopy. Leveraging a unique suite of existing and newly deployed instrumentation, AS5 will provide optical to near-infrared spectroscopy across a broad range of spectral resolutions and spatial scales. Its design enables both high-cadence monitoring and long time-baseline observations, making it uniquely suited to study dynamic astrophysical processes alongside the structure and evolution of galaxies. In this talk, I will use my own research in Galactic archaeology to motivate AS5 and outline the current progress of the survey.

Speaker: Keith Hawkins (The University of Texas at Austin)

The 2026 Fall Colloquium talks are held on Wednesdays at 3:00 PM. This colloquium is hosted by STScI and will be held as an in-person and virtual event.

You may join in person at STScI’s John N. Bahcall Auditorium or virtually on the STScI Research YouTube channel.

Please direct questions or comments to contact above. The 2026 Fall Colloquium Committee members are: Gagandeep Anand (STScI), Nimisha Kumari (STScI), Chris Nagele (JHU), Kevin Schlaufman (JHU), Greg Sloan (STScI), and Ethan Vishniac (JHU).