ABOUT US

The ASTRO 3D Galaxy Evolution with Lenses (AGEL) survey studies strong gravitational lenses identified using Machine Learning methods in deep optical imaging from the Dark Energy Survey and DECaLS.  The lenses are at higher redshifts relative to existing surveys due to the combination of deeper depth and higher resolution imaging from DECam.  AGEL will spectroscopically confirm about 200 bright (r<22 mag) strong gravitational lenses to enable statistically robust studies of deflectors and magnified sources.

Latest Publications

Our first catalogue of redshifts was published in Tran et al. 2022 and included 77 lens systems. Barone et al. 2025 builds on this first release and includes redshifts for 139 systems as well as reduced Hubble/WFC3 images for 71 lenses. Beyond this, our team maintains a larger source database which include targets that have not been spectroscopically confirmed or that may have been ruled out as legitimate lenses. 

See the The AGEL Data tab for details.

Visualizations

Additional Resources