S20B0037abst
S20B0037
We propose to use Gemini/GMOS-N to spectroscopically confirm the nature of a sample of dual quasar candidates at z > 1 having a projected separation between 7-16 kpc, a rare population. With the Subaru Hyper Suprime-Cam Strategic Survey Program, we have identified a population of SDSS quasars as having two components with flux ratios within a factor of 10:1. GMOS-N in queue mode is needed to acquire spectra of each component for those with projected separations between 1.5 β 2β²\ β². With the first statistical sample of spectroscopically-confirmed close dual quasars, we will measure their frequency and evolution of such systems up to zβΌ4 with a comparison to predictions from recent hydrodynamic cosmological simulations. These results will place important constraints on merger simulations of galaxies and their supermassive black holes that are input to an estimate of gravitational wave events to be detected by LISA. Furthermore, there is great scientific potential to develop this technique to find dual SMBHs with statistical samples given the final area coverage of HSC (1000 deg2) and future imaging with LSST, Euclid and WFIRST.
This document was translated from LATEX by HEVEA.