Powered by accretion onto supermassive black holes, active galactic nuclei (AGNs) and quasars are the keys to many outstanding questions in astronomy, including black hole (BH) demographics and BH-host galaxy (co)-evolution. Reverberation mapping (RM) is the primary technique to measure BH masses beyond the local Universe (z>0.3). RM measures the delay in variability signatures between the accretion disk and the broad-line region (BLR). BH masses can be estimated by combining the BLR radius (inferred from the time delay) and the BLR velocity dispersion (measured from the broad-line width) under the virial assumption. The Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project is one of the first large-scale RM campaigns to simultaneously monitor uniformly selected quasars over a broad luminosity and redshift range, which significantly expands the AGN parameter space for which RM has been conducted. I will present studies on measuring and optimizing lag detections in large-scale RM surveys using traditional and statistical methods. SDSS-RM has successfully measured BH masses for roughly 150 quasars over the past few years. With robust BH mass measurements, these quasars are the premium sample for studying the general quasar population. I will present follow-up observations on the SDSS-RM quasar host galaxies with the Hubble Space Telescope. These results lay the foundations for measuring RM-based BH masses and studying BH-host relations in ongoing and upcoming industrial-scale RM programs.
Topic: Jennifer Li's Defense
Time: Jun 15, 2021 10:30 AM Central Time (US and Canada)
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