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Now showing items 11-18 of 18
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 ...
The ATLAS(3D) project - VII. A new look at the morphology of nearby galaxies: the kinematic morphology-density relation
(2011-09)
In Paper I of this series we introduced a volume-limited parent sample of 871 galaxies from which we extracted the ATLAS(3D) sample of 260 early-type galaxies (ETGs). In Papers II and III we classified the ETGs using their ...
The ATLAS(3D) project - VI. Simulations of binary galaxy mergers and the link with fast rotators, slow rotators and kinematically distinct cores
(2011-09)
We study the formation of early-type galaxies (ETGs) through mergers with a sample of 70 high-resolution (softening length <60pc and 12 × 10 particles) numerical simulations of binary mergers of disc galaxies (with 10 per ...
The ATLAS(3D) project - II. Morphologies, kinemetric features and alignment between photometric and kinematic axes of early-type galaxies
(2011-07)
We use the ATLAS(3D) sample of 260 early-type galaxies to study the apparent kinematic misalignment angle, Psi, defined as the angle between the photometric and kinematic major axes. We find that 71 per cent of nearby ...
The ATLAS(3D) project - III. A census of the stellar angular momentum within the effective radius of early-type galaxies: unveiling the distribution of fast and slow rotators
(2011-06)
We provide a census of the apparent stellar angular momentum within one effective radius of a volume-limited sample of 260 early-type galaxies (ETGs) in the nearby Universe, using the integral-field spectroscopy obtained ...
The ATLAS(3D) project - V. The CO Tully-Fisher relation of early-type galaxies
(2011-06)
We demonstrate here using both single-dish and interferometric observations that CO molecules are an excellent kinematic tracer, even in high-mass galaxies, allowing us to investigate for the first time the CO Tully-Fisher ...
The ATLAS(3D) project - IV. The molecular gas content of early-type galaxies
(2011-06)
We have carried out a survey for CO J = 1-0 and J = 2-1 emission in the 260 early-type galaxies of the volume-limited ATLAS(3D) sample, with the goal of connecting their star formation and assembly histories to their cold ...
The ATLAS(3D) project - I. : A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria
(2011-05)
The ATLAS3D project is a multiwavelength survey combined with a theoretical modelling effort. The observations span from the radio to the millimetre and optical, and provide multicolour imaging, two-dimensional kinematics ...