Are the Variations in Quasar Optical Flux Driven by Thermal Fluctuations ?

@inproceedings{Kelly2009AreTV,
  title={Are the Variations in Quasar Optical Flux Driven by Thermal Fluctuations ?},
  author={Brandon C. Kelly and Jill Bechtold and Aneta Siemiginowska},
  year={2009}
}
We analyze a sample of optical light curves for 100 quasars, 70 of which have black hole mass estimates. Our sample is the largest and broadest used yet for modeling quasar variability. The sources in our sample have z < 2.8, 10 . λLλ(5100Å) . 10 , and 10 . MBH/M⊙ . 10 . We model the light curves as a continuous time stochastic process, providing a natural means of estimating the characteristic time scale and amplitude of quasar variations. We employ a Bayesian approach to estimate the… CONTINUE READING
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