Stochastic heating of cooling flows (2009)
Pavlovski, Georgi, Pope, Edward C. D.
It is generally accepted that the heating of gas in clusters of galaxies by active galactic nuclei (AGN) is a form of feedback. Feedback is required to ensure a long term, sustainable balance between...
Morphology of flows and buoyant bubbles in the Virgo cluster (2008)
Pavlovski, Georgi, Kaiser, Christian R., Pope, Edward C. D., Fangohr, Hans
There is growing evidence that the active galactic nuclei (AGN) associated with the central elliptical galaxy in clusters of galaxies are playing an important role in the evolution of the...
Morphology of flows and buoyant bubbles in the Virgo cluster (2007)
Pavlovski, Georgi, Kaiser, Christian R., Pope, Edward C. D., Fangohr, Hans
There is growing evidence that the active galactic nuclei (AGN) associated with the central elliptical galaxy in clusters of galaxies are playing an important role in the evolution of the...
Dynamics of buoyant bubbles in clusters of galaxies (2007)
Pavlovski, Georgi, Kaiser, Christian R., Pope, Edward C. D.
We present a phenomenological model of the dynamics of buoyant bubbles in the atmosphere of a cluster of galaxies. The derived equations describe velocity, size, mass, temperature and density of the...
Heating rate profiles in clusters of galaxies (2007)
Pope, Edward, Kaiser, Christian, Pavlovski, Georgi, Fangohr, Hans
The results of hydrodynamic simulations of the Virgo and Perseus clusters suggest that thermal conduction is not responsible for the observed temperature and density profiles. As a result it seems...
Heating rate profiles in galaxy clusters (2006)
Pope, Edward C.D., Pavlovski, Georgi, Kaiser, Christian R., Fangohr, Hans
In recent years evidence has accumulated suggesting that the gas in galaxy clusters is heated by non-gravitational processes. Here we calculate the heating rates required to maintain a physically...
Heating Rate Profiles in Galaxy Clusters (2006)
Pope, Edward C. D., Pavlovski, Georgi, Kaiser, Christian R., Fangohr, Hans
In recent years evidence has accumulated suggesting that the gas in galaxy clusters is heated by non-gravitational processes. Here we calculate the heating rates required to maintain a physically...
The effect of thermal conduction on the Virgo cluster (2005)
Pope, Edward C.D., Pavlovski, Georgi, Kaiser, Christian R., Fangohr, Hans
Thermal conduction has been suggested as a possible mechanism by which sufficient energy is supplied to the central regions of galaxy clusters to balance the effect of radiative cooling. Recent high...
The Effect of Thermal Conduction on the Virgo Cluster (2005)
Pope, Edward C. D., Pavlovski, Georgi, Kaiser, Christian R., Fangohr, Hans
Thermal conduction has been suggested as a possible mechanism by which sufficient energy is supplied to the central regions of galaxy clusters to balance the effect of radiative cooling. Here we...
The stability of buoyant bubbles in the atmospheres of galaxy clusters (2005)
Kaiser, Christian R., Pavlovski, Georgi, Pope, Edward C.D., Fangohr, Hans
The buoyant rise of hot plasma bubbles inflated by active galactic nuclei outflows in galaxy clusters can heat the cluster gas and thereby compensate radiative energy losses of this material....
Molecule destruction and formation in molecular clouds (2004)
Smith, Michael D., Pavlovski, Georgi, MacLow, Mordecai-Mark, Rosen, Alexander, Khanzadyan, Tigran, Gredel, Roland, ...
We show that supersonic turbulence accelerates the transition of an atomic cloud into a molecular cloud, quantified here through a demo model and 3D numerical simulations which explicitly include...
Pavlovski, Georgi, Smith, Michael D., Mac Low, Mordecai-Mark, Rosen, Alexander
We present the results from three dimensional hydrodynamical simulations of decaying high-speed turbulence in dense molecular clouds. We compare our results, which include a detailed cooling...