52 citations · 52 across the 4 of their papers we have counts for
3 papers · 1 filter
The Face-on View of the Milky Way: Gas Dynamics in the COBE NIR Bulge and Disk
Peter Englmaier, Ortwin E. Gerhard
We report simulations of the gas flow in the gravitational potential of the COBE NIR bulge and disk. These models lead to four--armed spiral structure between corotation of the bar…
Dynamical analysis of elliptical galaxy halos
Andi Kronawitter, Ortwin E. Gerhard, R. P. Saglia +1
We describe a non-parametric method for determining both the anisotropy and mass profiles of elliptical galaxies from velocity dispersions and velocity profile shapes along the lin…
Dynamical Mass Determination for Elliptical Galaxies
Ortwin Gerhard, Gunther Jeske, R. P. Saglia +1
The mass and anisotropy of an elliptical galaxy can be simultaneously determined from velocity dispersion and line profile shape measurements. We describe the principles, technique…