Description
Strong gravitational lensing systems with multiple source planes are powerful tools for probing the density profiles and dark matter substructure of galaxies, as well as the equation of state of dark energy. However, galaxy scale double-source-plane lenses are extremely rare. We have discovered four new galaxy-scale DSPL candidates in the Euclid Quick Release 1 data and several more in the Euclid OTF data. We apply the LensPop lens forecasting model to predict that the full Euclid survey will discover 1,700 DSPLs, corresponding to ~6 DSPLs in 63 deg2 (the area of Q1). In this talk, I will present the discovery process for these lenses and the lens models for each DSPL. Finally, I will discuss the challenges of the follow-up observations.
Primary author
Tian Li
