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Nuclear stellar discs in early-type galaxies -- I. HST and WHT observations
Frank C. van den Bosch, Walter Jaffe, Roeland P. van der Marel
We present multi-colour (U, V and I) photometry obtained with the second Wide Field and Planetary Camera (WFPC2) on the Hubble Space Telescope (HST), and spectra taken with the Wil…
Improved evidence for a black hole in M32 from HST/FOS spectra - II. Axisymmetric dynamical models
R. P. van der Marel, N. Cretton, P. T. de Zeeuw +1
Axisymmetric dynamical models are constructed for the E3 galaxy M32 to interpret high spatial resolution stellar kinematical HST data. Models are studied with two-integral phase-sp…
Dynamical stability of N-body models for M32 with a central black hole
R. P. van der Marel, S. Sigurdsson, L. Hernquist
We study the stability of stellar dynamical equilibrium models for M32. Kinematic observations show that M32 has a central black hole of 3x10^6 solar masses, and a phase-space dist…
Improved evidence for a black hole in M32 from HST/FOS spectra - I. Observations
R. P. van der Marel, P. T. de Zeeuw, H. W. Rix
We have obtained spectra through small apertures centered on the nuclear region and major axis of M32, with the HST/FOS. A detailed analysis and reduction of the data is presented,…
Dynamical Modeling of Velocity Profiles: The Dark Halo Around the Elliptical Galaxy NGC2434
Hans-Walter Rix, Tim de Zeeuw, Marcella Carollo +2
We describe a powerful technique to model and interpret the stellar line-of-sight velocity profiles of galaxies. Following Schwarzschild's modeling approach, a representative libra…
New evidence for a massive black hole at the centre of the quiescent galaxy M32
R. P. van der Marel, P. T. de Zeeuw, H. W. Rix +1
Massive black holes are thought to reside at the centres of many galaxies, where they power quasars and active galactic nuclei. But most galaxies are quiescent, indicating that any…