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The kinematically peculiar cores of the Coma cluster early -- type galaxies NGC 4816 and IC 4051
Doerte Mehlert, Roberto P. Saglia, Ralf Bender +1
The Coma cluster is one of the richest known cluster of galaxies, spanning about 4 dex in density. Hence it is the ideal place to study the structure of galaxies as a function of e…
Luminous Cluster Ellipticals as Cosmological Standard Rods?
R. Bender, R. P. Saglia, B. Ziegler +2
We explore the possibility to calibrate massive cluster ellipticals as cosmological standard rods. The method is based on the Fundamental Plane relation combined with a correction…
M32-like galaxies: still very rare -- M32 analogues do not exist in the Leo group
Bodo L. Ziegler, Ralf Bender
New observations of galaxies in the direction of the Leo group, which were classified as being candidates for M32-like dwarf galaxies by Ferguson & Sandage (1990), show that these…
Stellar Yields and Chemical Evolution I: Abundance Ratios and Delayed Mixing in the Solar Neighbourhood
D. Thomas, L. Greggio, R. Bender
We analyse two recent computations of type II supernova nucleosynthesis by Woosley & Weaver (1995, WW95) and Thielemann, Nomoto, & Hashimoto (1996, TNH96), focusing on the ability…
Spectroscopic Gradients in Early -- Type Galaxies and Implications on Galaxy Formation
Dörte Mehlert, Ralf Bender, Roberto P. Saglia +1
The Coma cluster is the ideal place to study galaxy structure as a function of environmental density in order to constrain theories of galaxy formation and evolution. Here we prese…
Exploring Cluster Ellipticals as Cosmological Standard Rods
R. Bender, R. P. Saglia, B. Ziegler +4
We explore the possibility to calibrate massive cluster ellipticals as cosmological standard rods using the Fundamental Plane relation combined with a correction for luminosity evo…
The Demography of Massive Dark Objects in Galaxy Centres
John Magorrian, Scott Tremaine, Douglas Richstone +9
We construct dynamical models for a sample of 36 nearby galaxies with Hubble Space Telescope photometry and ground-based kinematics. The models assume that each galaxy is axisymmet…
Global Relationships Among the Physical Properties of Stellar Systems
David Burstein, Ralf Bender, Sandra Faber +1
The kappa-space three-dimensional parameter system was originally defined for the physical properties of dynamically hot galaxies. Here we define self-consistent kappa-parameters f…
The Mgb-sigma Relation of Elliptical Galaxies at z=0.37
Bodo L. Ziegler, Ralf Bender
We derive absorption indices of ellipticals in clusters at z=0.37 from medium-resolution spectroscopy together with kinematical parameters. These galaxies exhibit a relationship be…
Spectroscopic Evidence for a Supermassive Black Hole in NGC 4486B
John Kormendy, Ralf Bender, John Magorrian +7
The stellar kinematics of the dwarf elliptical galaxy NGC 4486B have been measured in seeing sigma_* = .22 arcsec with the Canada-France-Hawaii Telescope. Lauer et al. 1996, ApJ, 4…
Structure, Formation and Ages of Elliptical Galaxies
Ralf Bender
The structural properties of elliptical galaxies are consistent with their formation in a merging hierarchy. In this picture, the role of gaseous processes and dissipation decrease…