Lick AGN monitoring 2011: light curves

This paper describes the observations, reductions and measurements, and data products from the spectroscopic campaign. The reduced spectra were fitted with a multicomponent model in order to isolate the contributions of various continuum and emission-line components.

We present light curves of broad emission lines and the active galactic nucleus (AGN) continuum, and measurements of the broad H{beta} line widths in mean and rms spectra. For the most highly variable AGNs we also measured broad H{beta} line widths and velocity centroids from the nightly spectra. In four AGNs exhibiting the highest variability amplitudes, we detect anticorrelations between broad H{beta} width and luminosity, demonstrating that the broad-line region "breathes" on short timescales of days to weeks in response to continuum variations.