Bauer, Anne; Baltay, C; Coppi, Paolo; Ellman, Nancy; Jerke, Jonathon; Rabinowitz, David; Scalzo, Richard
The ensemble variability properties of nearly 23,000 quasars are studied using the Palomar-QUEST Survey. The survey has covered 15,000 deg 2 multiple times over 3.5 years using seven optical filters, and has been calibrated specifically for variability work. Palomar-QUEST allows for the study of rare objects using multiple epochs of consistently calibrated, homogeneous data, obviating the common problem of generating comparable measurements from disparate data sets. A power-law fit to the...[Show more]
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