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The ATLAS project - XII : Recovery of the mass-to-light ratio of simulated early-type barred galaxies with axisymmetric dynamical models
(2012-08)
We investigate the accuracy in the recovery of the stellar dynamics of barred galaxies when using axisymmetric dynamical models. We do this by trying to recover the mass-to-light ratio (M/L) and the anisotropy of realistic ...
The ATLAS(3D) project-XIII. : mass and morphology of HI in early-type galaxies as a function of environment
(2012-05)
We present the ATLAS3D H i survey of a volume-limited, complete sample of 166 nearby early-type galaxies (ETGs) brighter than MK=-21.5. The survey is mostly based on data taken with the Westerbork Synthesis Radio Telescope, ...
Systematic variation of the stellar initial mass function in early-type galaxies
(2012-04-26)
Much of our knowledge of galaxies comes from analysing the radiation-emitted by their stars, which depends on the present number of each type of star in the galaxy. The present number depends on the stellar initial mass ...