A Reverberation-Based Mass for the Central Black Hole in NGC 4151

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dc.creatorBentz, Misty C.
dc.creatorDenney, Kelly D.
dc.creatorCackett, Edward M.
dc.creatorDietrich, Matthias
dc.creatorFogel, Jeffrey K. J.
dc.creatorGhosh, Himel
dc.creatorHorne, Keith
dc.creatorKuehn, Charles
dc.creatorMinezaki, Takeo
dc.creatorOnken, Christopher A.
dc.creatorPeterson, Bradley M.
dc.creatorPogge, Richard W.
dc.creatorPronik, Vladimir I.
dc.creatorRichstone, Douglas O.
dc.creatorSergeev, Sergey G.
dc.creatorVestergaard, Marianne
dc.creatorWalker, Matthew G.
dc.creatorYoshii, Yuzuru
dc.date2006-07-05
dc.date.accessioned2026-07-07T10:39:29Z
dc.date.available2026-07-07T10:39:29Z
dc.descriptionWe have undertaken a new ground-based monitoring campaign to improve the estimates of the mass of the central black hole in NGC 4151. We measure the lag time of the broad H beta line response compared to the optical continuum at 5100 A and find a lag of 6.6 (+1.1/-0.8) days. We combine our data with the recent reanalysis of UV emission lines by Metzroth et al. to calculate a weighted mean of the black hole mass, M_BH = 4.57 (+0.57/-0.47) x 10^7 M_sun. The absolute calibration of the black hole mass is based on normalization of the AGN black hole mass - stellar velocity dispersion (M_BH - sigma_*) relationship to that of quiescent galaxies by Onken et al. The scatter in the M_BH - sigma_* relationship suggests that reverberation-mapping based mass measurements are typically uncertain by a factor of 3-4.
dc.description17 pages, 3 tables, 3 figures, accepted for publication in ApJ
dc.identifierhttps://arxiv.org/abs/astro-ph/0607085
dc.identifierhttp://arxiv.org/abs/astro-ph/0607085
dc.identifierAstrophys.J.651:775-781,2006
dc.identifierdoi:10.1086/507417
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181046
dc.subjectAstrophysics
dc.titleA Reverberation-Based Mass for the Central Black Hole in NGC 4151
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