The lick AGN monitoring project 2011

Dynamical modeling of the broad-line region in Mrk 50

Anna Pancoast, Brendon J. Brewer, Tommaso Treu, Aaron J. Barth, Vardha N. Bennert, Gabriela Canalizo, Alexei V. Filippenko, Elinor L. Gates, Jenny E. Greene, Weidong Li, Matthew A. Malkan, David J. Sand, Daniel Stern, Jong Hak Woo, Roberto J. Assef, Hyun Jin Bae, Tabitha Buehler, S. Bradley Cenko, Kelsey I. Clubb, Michael C. Cooper & 16 others Aleksandar M. Diamond-Stanic, Kyle D. Hiner, Sebastian F. Hönig, Michael D. Joner, Michael T. Kandrashoff, C. David Laney, Mariana Lazarova, A. M. Nierenberg, Dawoo Park, Jeffrey M. Silverman, Donghoon Son, Alessandro Sonnenfeld, Shawn J. Thorman, Erik J. Tollerud, Jonelle L. Walsh, Richard Walters

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

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 log 10 (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 log 10 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.

Original languageEnglish (US)
Article number49
JournalAstrophysical Journal
Volume754
Issue number1
DOIs
StatePublished - Jul 20 2012

Fingerprint

reverberation
normalizing
virial coefficients
monitoring
galaxies
modeling
estimates
geometry
active galactic nuclei
inclination
kinematics
radii
coefficients
inflow
outflow
project

Keywords

  • Galaxies: active
  • Galaxies: individual (Mrk 50)
  • Galaxies: nuclei

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Pancoast, A., Brewer, B. J., Treu, T., Barth, A. J., Bennert, V. N., Canalizo, G., ... Walters, R. (2012). The lick AGN monitoring project 2011: Dynamical modeling of the broad-line region in Mrk 50. Astrophysical Journal, 754(1), [49]. https://doi.org/10.1088/0004-637X/754/1/49

The lick AGN monitoring project 2011 : Dynamical modeling of the broad-line region in Mrk 50. / Pancoast, Anna; Brewer, Brendon J.; Treu, Tommaso; Barth, Aaron J.; Bennert, Vardha N.; Canalizo, Gabriela; Filippenko, Alexei V.; Gates, Elinor L.; Greene, Jenny E.; Li, Weidong; Malkan, Matthew A.; Sand, David J.; Stern, Daniel; Woo, Jong Hak; Assef, Roberto J.; Bae, Hyun Jin; Buehler, Tabitha; Cenko, S. Bradley; Clubb, Kelsey I.; Cooper, Michael C.; Diamond-Stanic, Aleksandar M.; Hiner, Kyle D.; Hönig, Sebastian F.; Joner, Michael D.; Kandrashoff, Michael T.; Laney, C. David; Lazarova, Mariana; Nierenberg, A. M.; Park, Dawoo; Silverman, Jeffrey M.; Son, Donghoon; Sonnenfeld, Alessandro; Thorman, Shawn J.; Tollerud, Erik J.; Walsh, Jonelle L.; Walters, Richard.

In: Astrophysical Journal, Vol. 754, No. 1, 49, 20.07.2012.

Research output: Contribution to journalArticle

Pancoast, A, Brewer, BJ, Treu, T, Barth, AJ, Bennert, VN, Canalizo, G, Filippenko, AV, Gates, EL, Greene, JE, Li, W, Malkan, MA, Sand, DJ, Stern, D, Woo, JH, Assef, RJ, Bae, HJ, Buehler, T, Cenko, SB, Clubb, KI, Cooper, MC, Diamond-Stanic, AM, Hiner, KD, Hönig, SF, Joner, MD, Kandrashoff, MT, Laney, CD, Lazarova, M, Nierenberg, AM, Park, D, Silverman, JM, Son, D, Sonnenfeld, A, Thorman, SJ, Tollerud, EJ, Walsh, JL & Walters, R 2012, 'The lick AGN monitoring project 2011: Dynamical modeling of the broad-line region in Mrk 50', Astrophysical Journal, vol. 754, no. 1, 49. https://doi.org/10.1088/0004-637X/754/1/49
Pancoast, Anna ; Brewer, Brendon J. ; Treu, Tommaso ; Barth, Aaron J. ; Bennert, Vardha N. ; Canalizo, Gabriela ; Filippenko, Alexei V. ; Gates, Elinor L. ; Greene, Jenny E. ; Li, Weidong ; Malkan, Matthew A. ; Sand, David J. ; Stern, Daniel ; Woo, Jong Hak ; Assef, Roberto J. ; Bae, Hyun Jin ; Buehler, Tabitha ; Cenko, S. Bradley ; Clubb, Kelsey I. ; Cooper, Michael C. ; Diamond-Stanic, Aleksandar M. ; Hiner, Kyle D. ; Hönig, Sebastian F. ; Joner, Michael D. ; Kandrashoff, Michael T. ; Laney, C. David ; Lazarova, Mariana ; Nierenberg, A. M. ; Park, Dawoo ; Silverman, Jeffrey M. ; Son, Donghoon ; Sonnenfeld, Alessandro ; Thorman, Shawn J. ; Tollerud, Erik J. ; Walsh, Jonelle L. ; Walters, Richard. / The lick AGN monitoring project 2011 : Dynamical modeling of the broad-line region in Mrk 50. In: Astrophysical Journal. 2012 ; Vol. 754, No. 1.
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abstract = "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 log 10 (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 log 10 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.",
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author = "Anna Pancoast and Brewer, {Brendon J.} and Tommaso Treu and Barth, {Aaron J.} and Bennert, {Vardha N.} and Gabriela Canalizo and Filippenko, {Alexei V.} and Gates, {Elinor L.} and Greene, {Jenny E.} and Weidong Li and Malkan, {Matthew A.} and Sand, {David J.} and Daniel Stern and Woo, {Jong Hak} and Assef, {Roberto J.} and Bae, {Hyun Jin} and Tabitha Buehler and Cenko, {S. Bradley} and Clubb, {Kelsey I.} and Cooper, {Michael C.} and Diamond-Stanic, {Aleksandar M.} and Hiner, {Kyle D.} and H{\"o}nig, {Sebastian F.} and Joner, {Michael D.} and Kandrashoff, {Michael T.} and Laney, {C. David} and Mariana Lazarova and Nierenberg, {A. M.} and Dawoo Park and Silverman, {Jeffrey M.} and Donghoon Son and Alessandro Sonnenfeld and Thorman, {Shawn J.} and Tollerud, {Erik J.} and Walsh, {Jonelle L.} and Richard Walters",
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T2 - Dynamical modeling of the broad-line region in Mrk 50

AU - Pancoast, Anna

AU - Brewer, Brendon J.

AU - Treu, Tommaso

AU - Barth, Aaron J.

AU - Bennert, Vardha N.

AU - Canalizo, Gabriela

AU - Filippenko, Alexei V.

AU - Gates, Elinor L.

AU - Greene, Jenny E.

AU - Li, Weidong

AU - Malkan, Matthew A.

AU - Sand, David J.

AU - Stern, Daniel

AU - Woo, Jong Hak

AU - Assef, Roberto J.

AU - Bae, Hyun Jin

AU - Buehler, Tabitha

AU - Cenko, S. Bradley

AU - Clubb, Kelsey I.

AU - Cooper, Michael C.

AU - Diamond-Stanic, Aleksandar M.

AU - Hiner, Kyle D.

AU - Hönig, Sebastian F.

AU - Joner, Michael D.

AU - Kandrashoff, Michael T.

AU - Laney, C. David

AU - Lazarova, Mariana

AU - Nierenberg, A. M.

AU - Park, Dawoo

AU - Silverman, Jeffrey M.

AU - Son, Donghoon

AU - Sonnenfeld, Alessandro

AU - Thorman, Shawn J.

AU - Tollerud, Erik J.

AU - Walsh, Jonelle L.

AU - Walters, Richard

PY - 2012/7/20

Y1 - 2012/7/20

N2 - 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 log 10 (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 log 10 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.

AB - 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 log 10 (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 log 10 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.

KW - Galaxies: active

KW - Galaxies: individual (Mrk 50)

KW - Galaxies: nuclei

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U2 - 10.1088/0004-637X/754/1/49

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