Results 231 to 240 of about 5,644 (256)
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Chemical Evolution of Galaxies
1987We review some of the present ideas on chemical evolution of irregular galaxies and disks of spiral galaxies. Based on the O abundances in stars and H II regions we present a discussion of the yield; we also discuss the effects of large scale mass flows and of cold dark matter to explain variations in the observed yield. The C, N, O observed abundances
S. Torres-Peimbert, M. Peimbert
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Chemical evolution in simulations of galaxy formation
Astrophysics and Space Science, 2002We 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 photometric evolution of elliptical galaxies
Space Science Reviews, 1994In this paper we present the new chemical-spectro-photometric models of population synthesis by Bressan, Chiosi & Fagotto (1993). The models are specifically designed for elliptical galaxies. They include the presence of dark matter and galactic winds triggered by the energy depositfrom supernovae and winds of massive stars.
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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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Elliptical Galaxy Chemical Evolution
1999Conclusions about elliptical and other early-type galaxies come from studies of integrated starlight and studies of giant stars in the nearest galaxies. The abundance distribution for all galaxy types at all radii appears to exhibit a “G dwarf problem” in that the distribution is more strongly peaked than the one-zone closed-box constantyield ...
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Assessing stellar yields in Galaxy chemical evolution: Observational stellar abundance patterns
Monthly Notices of the Royal Astronomical Society, 2023Jinning Liang +2 more
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De re metallica: the cosmic chemical evolution of galaxies
Astronomy and Astrophysics Review, 2019R Maiolino, F Mannucci, Maiolino R
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The Evolution of Galaxy Structure Over Cosmic Time
Annual Review of Astronomy and Astrophysics, 2014Christopher J Conselice
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