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.

Our first catalogue of redshifts was published in Tran et al. 2022 and included 77 lens systems. Barone et al. (in prep) builds on this first release and includes redshifts for 139 systems as well as reduced Hubble/WFC3 images for 71 lenses. See the Data tap for details.