منابع مشابه
Gas Dynamics and Inflow in gas - rich Galaxy Mergers
We performed N-body/SPH simulations of merging gas-rich disk galaxies with mass ratios of 1:1 and 3:1. A stellar disk and bulge component and a dark halo was realized with collisionless particles, the gas was represented by SPH particles. Since we did not include star formation we focused on the gas dynamics and its influence on the structure of merger remnants. We find that equal-mass mergers ...
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Young, massive star clusters are the most notable and significant end products of violent star-forming episodes triggered by galaxy collisions, mergers, and close encounters. Their contribution to the total luminosity induced by such extreme conditions dominates, by far, the overall energy output due to the gravitationally-induced star formation. The general characteristics of these newly-forme...
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This thesis presents a study of the dynamics of trajectory calculations at low velocity utilizing potentials for the Li
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We present a brief overview of some recent observations of colliding galaxies and relevant numerical simulations. These are compared, and details of the locations and history of collision induced star formation are explored, with possible application to star formation at earlier epochs.
متن کاملGas and Galaxy Formation
The theory of galaxy formation is reviewed briefly. From the evidence of clusters today, the primordial gas fraction was 20% or more. Thus, while the Universe is dominated by dark matter, gas plays an appreciable role in galaxy formation. Collapses of dwarf protogalaxies produce predominantly cold gas. It is argued that, in such cold collapses, the collapsed gas is largely self-gravitating. As ...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1958
ISSN: 0074-1809
DOI: 10.1017/s0074180900226958