A Mock Catalog of Gravitationally-lensed Quasars for the LSST Survey

We present a mock catalog of gravitationally lensed quasars at $z_\text{qso}<7.5$ with simulated images for the Rubin Observatory Legacy Survey Space and Time (LSST). adopt recent measurements quasar luminosity functions to model population, use CosmoDC2 galaxy deflector galaxies, which successfully reproduces observed velocity dispersion up $z_d\sim1.5$. The is highly complete Einstein radius $\theta_E>0\farcs07$ absolute magnitude $M_{i}<-20$. estimate that there are $\sim10^3$ discoverable in current imaging surveys, LSST will increase this number $\sim2.4\times10^3$. Most have image separation $\Delta \theta>0\farcs5$, least be marginally resolved seeing $\sim0\farcs7$. There $\sim200$ quadruply-lensed LSST. fraction quad lenses among all about $\sim10\%-15\%$, decreases survey depth. This shows large diversity observational features quasars, terms lensing quasar-to-deflector flux ratio. discuss possible strategies search era.