Speaker
Description
The All-Quasar Multi-Epoch Spectroscopy (AQMES) Survey in the fifth iteration of the Sloan Digital Sky Survey (SDSS V) will yield multi-epoch spectroscopy for approximately 20,000 quasars on long timescales of years to decades. This program is complementary to ongoing reverberation mapping campaigns, as it provides the opportunity to monitor the variability of broad emission-line shapes that result from dynamical changes in a quasar broad-line region. I will introduce a pilot study to search for extreme cases of variability in the shapes of H-beta line profiles, and demonstrate the potential to detect and characterize unique physical changes in accretion disks and winds occurring on the dynamical timescale of the broad line emitting region. I will present examples of the candidates for dramatic variability in profile shapes we have discovered so far, as well as efforts to describe the changes in these broad line profiles in the context of dynamical broad line region changes using physical accretion disk models.
