A Relationship between Nuclear Black Hole Mass and Galaxy Velocity Dispersion | Zendy

Karl Gebhardt | Zendy; R. Bender | Zendy; Gary Bower | Zendy; Alan Dressler | Zendy; S. M. Faber | Zendy; A. V. Filippenko | Zendy; Richard F. Green | Zendy; Carl J. Grillmair | Zendy; Luis C. Ho | Zendy; John Kormendy | Zendy; Tod R. Lauer | Zendy; John Magorrian | Zendy; Jason Pinkney | Zendy; Douglas Richstone | Zendy; Scott Tremaine | Zendy

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A Relationship between Nuclear Black Hole Mass and Galaxy Velocity Dispersion

Author(s) -

Karl Gebhardt,

R. Bender,

Gary Bower,

Alan Dressler,

S. M. Faber,

A. V. Filippenko,

Richard F. Green,

Carl J. Grillmair,

Luis C. Ho,

John Kormendy,

Tod R. Lauer,

John Magorrian,

Jason Pinkney,

Douglas Richstone,

Scott Tremaine

Publication year - 2000

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/312840

Subject(s) - physics , astrophysics , velocity dispersion , galaxy , sigma , black hole (networking) , luminosity , bulge , fundamental plane (elliptical galaxies) , radius , stellar mass , astronomy , galaxy formation and evolution , lenticular galaxy , star formation , computer network , routing protocol , routing (electronic design automation) , computer security , computer science , link state routing protocol

We describe a correlation between the mass M_BH of a galaxy's central blackhole and the luminosity-weighted line-of-sight velocity dispersion sigma_ewithin the half-light radius. The result is based on a sample of 26 galaxies,including 13 galaxies with new determinations of black hole masses from HubbleSpace Telescope measurements of stellar kinematics. The best-fit correlation isM_BH = 1.2 (+-0.2) x 10^8 M_sun (sigma_e/200 km/s)^(3.75 (+-0.3))over almostthree orders of magnitude in M_BH; the scatter in M_BH at fixed sigma_e is only0.30 dex and most of this is due to observational errors. The M_BH-sigma_erelation is of interest not only for its strong predictive power but alsobecause it implies that central black hole mass is constrained by and closelyrelated to properties of the host galaxy's bulge.Comment: 4 pages, accepted ApJ Letters, figure added and minor correction

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