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The lick AGN monitoring project 2011: Dynamical modeling of the broad-line region in Mrk 50
The Astrophysical Journal
  • Anna Pancoast, University of California - Santa Barbara
  • Brendon J. Brewer, University of California - Santa Barbara
  • Tommaso Treu, University of California - Santa Barbara
  • Aaron J. Barth, University of California - Irvine
  • Vardha N. Bennert, California Polytechnic State University, San Luis Obispo
  • Gabriela Canalizo, University of California - Riverside
  • Alexei V. Filippenko, University of California - Berkeley
  • Elinor L. Gates, Lick Observatory
  • Jenny E. Greene, Princeton University
  • Weidong Li, University of California - Berkeley
  • Matthew A. Malkan, University of California - Los Angeles
  • David J. Sand, University of California - Santa Barbara
  • Daniel Stern, California Institute of Technology
  • Jong-Hak Woo, Seoul National University
  • Roberto J. Assef, California Institute of Technology
  • Hyun-Jin Bae, Yonsei University
  • Tabitha Buehler, Brigham Young University - Utah
  • S. Bradley Cenko, University of California - Berkeley
  • Kelsey I. Clubb, University of California - Berkeley
  • Michael C. Cooper, University of California - Irvine
  • Aleksandar M. Diamond-Stanic, University of California - San Diego
  • Kyle D. Hiner, University of California - Riverside
  • Sebastian F. Hönig, University of California - Santa Barbara
  • Michael D. Joner, Brigham Young University - Utah
  • Michael T. Kandrashoff, University of California - Berkeley
  • C. David Laney, Brigham Young University - Utah
  • Mariana S. Lazarova, University of California - Riverside
  • A.M. Nierenberg, University of California - Santa Barbara
  • Dawoo Park, Seoul National University
  • Jeffrey M. Silverman, University of California - Berkeley
  • Donghoon Son, Seoul National University
  • Alessandro Sonnenfeld, University of California - Santa Barbara
  • Shawn J. Thorman, University of California - Irvine
  • Erik J. Tollerud, University of California - Irvine
  • Jonelle L. Walsh, University of Texas at Austin
  • Richard Walters, California Institute of Technology
Publication Date
We present dynamical modeling of the broad-line region (BLR) in the Seyfert 1 galaxy Mrk 50 using reverberation mapping data taken as part of the Lick AGN Monitoring Project (LAMP) 2011. We model the reverberation mapping data directly, constraining the geometry and kinematics of the BLR, as well as deriving a black hole mass estimate that does not depend on a normalizing factor or virial coefficient. We find that the geometry of the BLR in Mrk 50 is a nearly face-on thick disk, with a mean radius of 9.6+1.2 –0.9 light days, a width of the BLR of 6.9+1.2 –1.1 light days, and a disk opening angle of 25 ± 10 deg above the plane. We also constrain the inclination angle to be 9+7 –5 deg, close to face-on. Finally, the black hole mass of Mrk 50 is inferred to be log10(M BH/M ☉) = 7.57+0.44 –0.27. By comparison to the virial black hole mass estimate from traditional reverberation mapping analysis, we find the normalizing constant (virial coefficient) to be log10 f = 0.78+0.44 –0.27, consistent with the commonly adopted mean value of 0.74 based on aligning the M BH-σ* relation for active galactic nuclei and quiescent galaxies. While our dynamical model includes the possibility of a net inflow or outflow in the BLR, we cannot distinguish between these two scenarios.
Citation Information
Anna Pancoast, Brendon J. Brewer, Tommaso Treu, Aaron J. Barth, et al.. "The lick AGN monitoring project 2011: Dynamical modeling of the broad-line region in Mrk 50" The Astrophysical Journal Vol. 754 Iss. 1 (2012) p. 1 - 8
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