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Detection of Periodic Variability in Simulated QSO Light Curves
David B. Westman, Chelsea L. MacLeod, Zeljko Ivezic
Periodic light curve behavior predicted for some binary black hole systems might be detected in large samples, such as the multi-million quasar sample expected from the Large Synop…
Quasar Selection Based on Photometric Variability
C. L. MacLeod, K. Brooks, Z. Ivezic +7
We develop a method for separating quasars from other variable point sources using SDSS Stripe 82 light curve data for ~10,000 variable objects. To statistically describe quasar va…
Multiwavelength Observations of Radio-quiet Quasars with Weak Emission Lines
Richard M. Plotkin, Scott F. Anderson, W. N. Brandt +5
We present radio and X-ray observations, as well as optical light curves, for a subset of 26 BL Lac candidates from the Sloan Digital Sky Survey (SDSS) lacking strong radio emissio…
Modeling the Time Variability of SDSS Stripe 82 Quasars as a Damped Random Walk
C. L. MacLeod, Ž. Ivezić, C. S. Kochanek +10
We model the time variability of ~9,000 spectroscopically confirmed quasars in SDSS Stripe 82 as a damped random walk. Using 2.7 million photometric measurements collected over 10…