The Extragalactic-Astronomy Team @ DiRAC (EAT) is a group of astronomers and engineers solving some of the most pressing questions in high-redshift astrophysics — how do the first galaxies form stars? Where does quenching begin in high-redshift systems? What is the connection between black hole feedback and galaxy evolution?

The projects we’re presently working on include:

• Rubin Observations of High-Redshift Galaxies.
• Morphology and Structure of Millions of Galaxies across Cosmic Time.
• Spatially Resolved Photometry and Spectroscopy of Strong Gravitationally Lensed Systems.
• Modeling Stellar Populations and Quenching Timescales in Massive Galaxies in the Early Universe.

We are heavily involved in understanding the Universe via the following facilities:

• JWST — the space-based infrared spectroscopic and photometric observatory, operational since 2022.
• The Simonyi Survey Telescope with the Rubin/LSST Observatory.
• The Nancy Grace Roman Space Telescope.
• The Euclid Observatory.
• The Apache Point Observatory.

Core Team

• DiRAC Leadership: Gourav Khullar, Andy Connolly, Zeljko Ivezic
• DiRAC Fellows, Research Scientists and Engineers: Peter Ferguson, Aritra Ghosh, Drew Oldag, Michael Tauraso, Bryce Kalmbach, Chin Yi Tan
• Graduate Students: Dylan Berry (post-bacc)
• Undergraduates: Emma Lamb-Smith