Speaker
Description
Strong gravitational lensing is a powerful tool for mapping the distribution of dark matter and testing various cosmological parameters. One such parameter is the Hubble Constant, which can be determined by measuring the time delay between lensed images. Our study focuses on the detection of lensed quasars by forthcoming Nancy Grace Roman Space Telescope (Roman) survey. Based on the capability of the Roman telescope and the recent results for the Quasar Luminosity Function (QLF) in the infrared band of Spitzer Space Telescope imaging survey, we find the number of quasars that will be observed by Roman telescope. Also, we develop Monte Carlo simulations using the mass-luminosity distribution function of galaxies and the redshift distributions of galaxies and quasars to find the efficiency that a quasar to be lensed by foreground galaxies. Even though this survey is not primarily designed as a strong lensing detection experiment, it will still provide a large complementary catalogue to forthcoming lensing discovery projects.
