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A Dynamical Model for the Extra-planar Gas in Spiral Galaxies
Filippo Fraternali, James Binney
Recent HI observations reveal that the discs of spiral galaxies are surrounded by extended gaseous haloes. This extra-planar gas reaches large distances (several kpc) from the disc…
The gaseous haloes of disc galaxies
F. Fraternali, T. Oosterloo, J. J. Binney +1
The study of gas outside the plane of disc galaxies is crucial to understanding the circulation of material within a galaxy and between galaxies and the intergalactic environment.…
Time variability of AGN and heating of cooling flows
Carlo Nipoti, James Binney
There is increasing evidence that AGN mechanical feedback is important in the energetics of cooling flows in galaxies and galaxy clusters. We investigate the implications of the va…
Rotation and anisotropy of galaxies revisited
James Binney
The use of the tensor virial theorem (TVT) as a diagnostic of anisotropic velocity distributions in galaxies is revisited. The TVT provides a rigorous global link between velocity…