Negative Lags on the Viscous Timescale in Quasar Photometry and Prospects for Detecting More with LSST
The variability of quasar light curves can be used to study the structure of quasar accretion disks.For example, continuum reverberation mapping Pram Liner uses delays between variability in short and long wavelength bands ( short lags) to measure the radial extent and temperature profile of the disk.Recently, a potential reverse lag, where variati