J
J. Magorrian
Researcher at University of Toronto
Publications - 9
Citations - 4719
J. Magorrian is an academic researcher from University of Toronto. The author has contributed to research in topics: Galaxy & Velocity dispersion. The author has an hindex of 6, co-authored 9 publications receiving 4524 citations. Previous affiliations of J. Magorrian include University of Cambridge.
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Journal ArticleDOI
The Demography of massive dark objects in galaxy centers
J. Magorrian,Scott Tremaine,Scott Tremaine,Douglas O. Richstone,Ralf Bender,G. A. Bower,Alan Dressler,Sandra M. Faber,Karl Gebhardt,Richard E. Green,Carl J. Grillmair,John Kormendy,Tod R. Lauer +12 more
TL;DR: In this article, the authors constructed dynamical models for a sample of 36 nearby galaxies with Hubble Space Telescope (HST) photometry and ground-based kinematics, assuming that each galaxy is axisymmetric, with a two-integral distribution function, arbitrary inclination angle, a position-independent stellar mass-to-light ratio, and a central massive dark object of arbitrary mass M•.
Journal ArticleDOI
Axisymmetric, Three-Integral Models of Galaxies: A Massive Black Hole in NGC 3379
Karl Gebhardt,Karl Gebhardt,Douglas O. Richstone,John Kormendy,Tod R. Lauer,Edward A. Ajhar,Ralf Bender,Alan Dressler,S. M. Faber,Carl J. Grillmair,J. Magorrian,Scott Tremaine +11 more
TL;DR: In this paper, the authors fit axisymmetric three-integral dynamical models to NGC 3379 using the line-of-sight velocity distribution obtained from Hubble Space Telescope FOS spectra of the galaxy center and ground-based long-slit spectroscopy along four position angles.
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Dynamical masses of early-type galaxies: a comparison to lensing results and implications for the stellar IMF and the distribution of dark matter
J. Thomas,Roberto P. Saglia,R. Bender,Daniel Thomas,Karl Gebhardt,J. Magorrian,Enrico Maria Corsini,Gary Wegner,Stella Seitz +8 more
TL;DR: In this paper, the distribution of luminous and dark matter in Coma early-type galaxies was studied using Lick absorption line indices, and it was shown that the tilt in the fundamental plane can be explained by systematic variations of the total (stellar + dark) mass inside the effective radius.
Journal ArticleDOI
The velocity and mass distribution of clusters of galaxies from the CNOC1 cluster redshift survey
TL;DR: In this paper, a one-parameter family of spherical models with different constant velocity dispersion anisotropy was used to analyze the full (R,v) dataset of galaxy positions and velocities in an attempt to break this degeneracy.
Journal ArticleDOI
Spectroscopic Evidence for a Supermassive Black Hole in NGC 4486B
John Kormendy,John Kormendy,Ralf Bender,J. Magorrian,Scott Tremaine,Scott Tremaine,Karl Gebhardt,Douglas O. Richstone,Alan Dressler,Sandra M. Faber,Carl J. Grillmair,Tod R. Lauer +11 more
TL;DR: The stellar kinematics of the low-luminosity elliptical galaxy NGC 4486B have been measured in this article with the Canada-France-Hawaii Telescope and Subarcsecond Imaging Spectrograph.