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The bar-halo interaction - I. From fundamental dynamics to revised N-body requirements
dark matter formation
2014/12/23
A galaxy remains near equilibrium for most of its history. Only through resonances can non-axisymmetric features, such as spiral arms and bars, exert torques over large scales and change the overall s...
Photometric redshift requirements for lens galaxies in galaxy-galaxy lensing analyses
requirements lens galaxies'galaxy-galaxy lensing analyses
2011/9/29
Weak gravitational lensing is a valuable probe of galaxy formation and cosmology. Here we quantify the effects of using photometric redshifts (photo-z) in galaxy-galaxy lensing, for both sources and l...