{
  "id": "1503.01146",
  "version": "v1",
  "published": "2015-03-03T22:09:35.000Z",
  "updated": "2015-03-03T22:09:35.000Z",
  "title": "The Lick AGN Monitoring Project 2011: Spectroscopic Campaign and Emission-Line Light Curves",
  "authors": [
    "A. J. Barth",
    "V. N. Bennert",
    "G. Canalizo",
    "A. V. Filippenko",
    "E. L. Gates",
    "J. E. Greene",
    "W. Li",
    "M. A. Malkan",
    "A. Pancoast",
    "D. J. Sand",
    "D. Stern",
    "T. Treu",
    "J. -H. Woo",
    "R. J. Assef",
    "H. -J. Bae",
    "B. J. Brewer",
    "S. B. Cenko",
    "K. I. Clubb",
    "M. C. Cooper",
    "A. M. Diamond-Stanic",
    "K. D. Hiner",
    "S. F. Hoenig",
    "E. Hsiao",
    "M. T. Kandrashoff",
    "M. S. Lazarova",
    "A. M. Nierenberg",
    "J. Rex",
    "J. M. Silverman",
    "E. J. Tollerud",
    "J. L. Walsh"
  ],
  "comment": "33 pages, 28 figures, accepted for publication in ApJ Supplement Series",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "In the Spring of 2011 we carried out a 2.5 month reverberation mapping campaign using the 3 m Shane telescope at Lick Observatory, monitoring 15 low-redshift Seyfert 1 galaxies. 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 AGN continuum, and measurements of the broad H-beta line widths in mean and root-mean square (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. We also find that broad H-beta velocity centroids can undergo substantial changes in response to continuum variations; in NGC 4593 the broad H-beta velocity shifted by ~250 km/s over a one-month duration. This reverberation-induced velocity shift effect is likely to contribute a significant source of confusion noise to binary black hole searches that use multi-epoch quasar spectroscopy to detect binary orbital motion. We also present results from simulations that examine biases that can occur in measurement of broad-line widths from rms spectra due to the contributions of continuum variations and photon-counting noise.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-03-03T22:09:35.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "lick agn monitoring project",
      "broad h-beta line widths",
      "emission-line light curves",
      "spectroscopic campaign",
      "broad h-beta velocity"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 33,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}