Results 51 to 60 of about 195,665 (278)

Effects of thermohaline instability and rotation-induced mixing on the evolution of light elements in the Galaxy : D, 3He and 4He [PDF]

open access: yes, 2012
Recent studies of low- and intermediate-mass stars show that the evolution of the chemical elements in these stars is very different from that proposed by standard stellar models.
Asplund   +88 more
core   +2 more sources

Star cluster formation in cosmological simulations – III. Dynamical and chemical evolution [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
In previous papers of this series, we developed a new algorithm for modeling the formation of star clusters in galaxy formation simulations. Here we investigate how dissolution of bound star clusters affects the shape of the cluster mass function and the
Hui Li, O. Gnedin
semanticscholar   +1 more source

Chemical and mass evolution of galaxies

open access: green, 2004
6 pages, needs saltwshop.sty; to appear in: ``First Robert Stobie SALT Workshop", Science with SALT Workshop Proceedings, Vol. 2, ed. D. A. H.
B. Ziegler
openalex   +4 more sources

Stellar populations in gas-rich galaxy mergers I. Dependence on star formation history

open access: yes, 1998
We investigate the nature of stellar populations of major galaxy mergers between late-type spirals considerably abundant in interstellar medium by performing numerical simulations designed to solve both the dynamical and chemical evolution in a self ...
Bekki, Kenji, Shioya, Yasuhiro
core   +1 more source

Effects of Supernova Feedback on the Formation of Galaxies [PDF]

open access: yes, 2008
We study the effects of Supernova (SN) feedback on the formation of galaxies using hydrodynamical simulations in a Lambda-CDM cosmology. We use an extended version of the code GADGET-2 which includes chemical enrichment and energy feedback by Type II and
Cecilia Scannapieco   +4 more
core   +1 more source

Chemical evolution of disc galaxies from cosmological simulations [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
We perform a suite of cosmological hydrodynamical simulations of disc galaxies, with zoomed-in initial conditions leading to the formation of a halo of mass $M_{\rm halo, \, DM} \simeq 2 \cdot 10^{12}$ M$_{\odot}$ at redshift $z=0$. These simulations aim
M. Valentini   +5 more
semanticscholar   +1 more source

The Chemical Evolution of Galaxies [PDF]

open access: yesProceedings of Frank N. Bash Symposium 2015 — PoS(BASH2015), 2016
The gas-phase oxygen abundance, i.e. metallicity, of a galaxy is set by the interplay between star formation and gas flows. Metals are dispersed into the interstellar medium by stellar winds and supernovae. Metals accumulate in the interstellar medium of star-forming galaxies and provide a record of star-formation.
openaire   +1 more source

He abundances in disc galaxies. I. Predictions from cosmological chemodynamical simulations [PDF]

open access: yes, 2019
Accepted for publication in A&AWe investigate how the stellar and gas-phase He abundances evolve as a function of time within simulated star-forming disc galaxies with different star formation histories.
Kobayashi, Chiaki   +4 more
core   +4 more sources

From ‘bathtub’ galaxy evolution models to metallicity gradients [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
We model gas phase metallicity radial profiles of galaxies in the local Universe by building on the `bathtub' chemical evolution formalism - where a galaxy's gas content is determined by the interplay between inflow, star formation and outflows.
F. Belfiore   +4 more
semanticscholar   +1 more source

Numerical simulations of the chemical evolution of complex gravitating disk and dwarf galaxies system

open access: yesВісник Астрономічної школи, 2004
In this work we have simulated the evolution of disk and dwarf galaxies gravitating system, using our viscosity algorithm. We investigated changes in disk galaxy chemical abundance due to minor merger of dwarf galaxy with lower abundance of heavy ...
T. A. Shumakova, P. P. Berczik
doaj   +1 more source

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