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The chemical evolution of the Galaxy
Nature, 1986The distribution of enriched material in the stars and gas of our Galaxy contains information pertaining to the chemical evolution of the Milky Way from its formation epoch to the present, providing general constraints on theories of galaxy formation. Detailed studies of the metallicities of well-defined samples of long-lived G-dwarf stars in the solar
Rosemary F. G. Wyse +2 more
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Chemical evolution in simulations of galaxy formation [PDF]
Astrophysics and Space Science, 2002 We developed a new algorithm to implement detailed chemical evolution in SPH models of galaxy formation. Delayed gas restitution and different production timescales for different elements are taken into account, with minor computational effort. The algorithm is especially conceived for SPH simulations with large numbers of particles, and for parallel ...
Portinari,L, CARRARO, GIOVANNI, Lia,C
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Chemical and Dynamical Evolution of Spiral Galaxies
Astrophysics and Space Science, 2002We present the very first results of a new 3D numerical model for the formation and evolution of spiral galaxies along the Hubble sequence. We take into account the hydrodynamical properties of the gas with an SPH method while we use a tree code for the gravitational forces of the dark matter and stars.
Poirier, Sébastien +2 more
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The chemical evolution of galaxies
Journal of Physics G: Nuclear and Particle Physics, 1993The chemical evolution of galaxies is discussed starting with the simple box model. It is shown that this model with the additional assumption of metal-rich outflow provides a first useful insight into the chemical evolution of different stellar populations.
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The chemical evolution of galaxies
Vistas in Astronomy, 1975Abstract Emphasis is placed on the simplest models of the chemical evolution of galaxies, and the role played by the concentration of the interstellar gas to gravitational stable regions is taken into account. Although Schmidt's simple model is improved when concentration is allowed for, it still predicts too wide a spread of metal abundances for ...
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The Chemical Evolution of Dwarf Galaxies
Astrophysics and Space Science, 2001Various observations of dwarf starburst galaxies have revealed homogeneous abundance within the ionized region suggesting that the measured metallicities do not result from the metals ejected during the current burst (because they should not have time to mix homogeneously at such large scale) but from previous star formation episodes.
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Chemical Evidence for Evolution of Galaxies
Astrophysics and Space Science, 2001I have compiled the very best data published on abundance gradients. From this sample of 29 galaxies, some information can be gained on the mecanism of morphological evolution in disk galaxies. From this sample, I find that early-type galaxies show an identical trend in the behavior of extrapolated central abundance versus morphological type to that ...
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Cosmic chemical evolution and the evolution of galaxies
AIP Conference Proceedings, 2000The evolutionary history of star and element formation rates with cosmic epoch is reviewed. The problem of taking proper account of the effects of dust obscuration in optical and ultraviolet observations is emphasised. Recent submillimetre surveys have been used to derive the star formation rate as a function of cosmic epoch independent of dust ...
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Chemical Abundances and Galaxy Evolution [PDF]
, 1984 The chemical abundance characteristics of two comparatively structurally simple classes of galaxies, the ellipticals and irregulars, are briefly reviewed. Neither of these types of galaxies have properties which are fully consistent with the quantitative predictions of basic chemical evolution models. Possible sources for discrepancies are discussed in
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The Chemical and Dynamical Evolution of the Galaxy
Publications of the Astronomical Society of the Pacific, 1993Theoretical models of the chemical and dynamical evolution of galaxies are developed and a Galactic structure survey is presented -- both are invaluable tools for uncovering the history of the formation of our Galaxy. Important advances in my theoretical models are non-instantaneous recycling of newly synthesized elements such as iron from Type Ia ...
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