Results 1 to 10 of about 1,527 (218)
The Chemical Evolution of the Galaxy [PDF]
Over the last few years, our picture of the chemical evolution of the Galaxy has changed substantially. These changes are of interest because chemical evolution provides a common point of contact for most astrophysical processes of importance to galaxy evolution.
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Evolution of galaxy clustering [PDF]
Four pages, 1 figure.
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Evolution of gas in galaxies [PDF]
5 pages, 2 figures. To appear in 'From Planets to Dark Energy: the Modern Radio Universe' (Manchester, October 2007), eds. R.
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Evolution of clusters of galaxies
In hierarchical models for structure formation like CDM, the mass scale of clustering evolves rapidly and clusters in the past are predicted to be less massive, but denser and more numerous. The indication from optical searches is that the cluster population is roughly stable in that high velocity dispersion clusters seem to be about as abundant at z ~
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Dwarf spheroidal galaxies: Keystones of galaxy evolution [PDF]
Dwarf spheroidal galaxies are the most insignificant extragalactic stellar systems in terms of their visibility, but potentially very significant in terms of their role in the formation and evolution of much more luminous galaxies. We discuss the present observational data and their implications for theories of the formation and evolution of both dwarf
Gallagher III, John S. +1 more
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Cosmological evolution of galaxies [PDF]
I review the subject of the cosmological evolution of galaxies, including different aspects of growth in disk galaxies, by focussing on the angular momentum problem, mergers, and their by-products. I discuss the alternative to merger-driven growth -- cold accretion and related issues.
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Kinematics of Cluster Galaxies and Their Relation to Galaxy Evolution [PDF]
Abstract We study the kinematics of galaxies within massive clusters, as a probe of the physics of star formation quenching within clusters. Using N-body simulations, we argue that satellite kinematics provide information about galaxy infall that is complementary to the (instantaneous) spatial distribution of satellites and can help ...
Susmita Adhikari +3 more
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Galaxy-galaxy(-galaxy) lensing as a sensitive probe of galaxy evolution [PDF]
11 pages, 8 figures, accepted in A& ...
Saghiha, H. +3 more
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On the origin and evolution of life in the Galaxy [PDF]
AbstractA simple stochastic model for evolution, based upon the need to pass a sequence ofncritical steps is applied to both terrestrial and extraterrestrial origins of life. In the former case, the time at which humans have emerged during the habitable period of Earth suggests a value ofn=4.
McCabe, Michael, Lucas, H.
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The chemical evolution of galaxies
Metals -- heavy elements synthesized during various phases of stellar evolution or during supernova explosions -- play a fundamental role in shaping galaxy evolution. In fact, their relative abundances, spatial distribution, and scaling with galactic properties reflect the constant interplay between star-formation, nucleosynthesis, and gas flows that ...
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