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Related papers: Galactic and Cosmic Chemical Evolution with Hypern…

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We use our unified chemical and spectrophotometric evolutionary synthesis code to describe galaxies of various Hubble types. With stellar evolutionary tracks and element yields for 5 different metallicities we follow the spectrophotometric…

Astrophysics · Physics 2007-05-23 U. Fritze - v. Alvensleben , U. Lindner , K. J. Fricke

We examine the chemical and dynamical structure in the solar neighbourhood of a model Galaxy that is the endpoint of a simulation of the chemical evolution of the Milky Way in the presence of radial mixing of stars and gas. Although the…

Astrophysics of Galaxies · Physics 2014-11-20 Ralph Schoenrich , James Binney

We present preliminary results on the effects of mergers on the chemical properties of galactic objects in hierarchical clustering scenarios. We adopt a hydrodynamical chemical code that allows to describe the coupled evolution of dark…

Astrophysics · Physics 2007-05-23 S. A. Cora , P. B. Tissera , D. G. Lambas , M. B. Mosconi

The problem of chemo-photometric evolution of late-type galaxies is dealt with relying on prime physical arguments of energetic self-consistency between chemical enhancement of galaxy mass, through nuclear processing inside stars, and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Alberto Buzzoni

Here we investigate an exemplary chemodynamical evolutionary simulation of a dwarf irregular galaxy. By means of this model we demonstrate the existence of three gas mixing cycles: 1) An inner "local cycle" mixing the metals produced in…

Astrophysics · Physics 2008-11-26 Andreas Rieschick , Gerhard Hensler

Galactic chemical evolution is a topic that involves nuclear physics, stellar evolution, galaxy evolution, observation, and cosmology. Continuous communication and feedback between these fields is a key component in improving our…

Metallicity is a fundamental physical property that strongly constrains galaxy formation and evolution. The formation of stars in galaxies is suppressed by the energy released from supernova explosions and can be enhanced by metal…

Astrophysics of Galaxies · Physics 2023-10-26 Dyna Ibrahim , Chiaki Kobayashi

Using our rich observations within the Milky Way to better understand galaxy evolution requires understanding what the Milky Way looks like "as a galaxy" -- that is, its "true" shape and abundance profiles (unskewed by observational…

Astrophysics of Galaxies · Physics 2025-07-24 Gail Zasowski , Julie Imig , Hayley Coluccio

We compute the chemical evolution of the Galactic bulge to explain the existence of two main stellar populations recently observed. After comparing model results and observational data we suggest that the old more metal poor stellar…

Astrophysics of Galaxies · Physics 2015-06-11 V. Grieco , F. Matteucci , A. Pipino , G. Cescutti

We present a new generation of chemically consistent evolutionary synthesis models for galaxies of various spectral types from E through Sd. The models follow the chemical enrichment of the ISM and take into account the increasing initial…

We investigate how the stellar and gas-phase He abundances evolve as functions of time within simulated star-forming disc galaxies with different star formation histories. We make use of a cosmological chemodynamical simulation for galaxy…

Astrophysics of Galaxies · Physics 2019-10-09 Fiorenzo Vincenzo , Andrea Miglio , Chiaki Kobayashi , J. Ted Mackereth , Josefina Montalban

By means of chemo-photometric models for galaxies of different morhological types, we have carried out a detailed study of the history of element production by spheroidal and dwarf irregular galaxies. Spheroidal galaxies suffer a strong and…

Astrophysics · Physics 2009-11-11 Francesco Calura , Francesca Matteucci

We present some preliminary results obtained with a new galactic chemodynamical tool under development. In the framework of non-instantaneous recycling approach, we follow the interactions due to star formation and feedback processes. One…

Astrophysics · Physics 2009-11-13 Nicolas Champavert , Hervé Wozniak

We describe the basic features of a Monte Carlo model specifically designed to follow the inhomogenous chemical evolution of the Galactic halo, taking into account the effects of local enrichment and mixing of the halo gas, and with…

Astrophysics · Physics 2007-05-23 C. Travaglio , A. Burkert , D. Galli

Models of the chemical evolution of our Galaxy are extended to include radial migration of stars and flow of gas through the disc. The models track the production of both iron and alpha elements. A model is chosen that provides an excellent…

Astrophysics · Physics 2015-05-13 Ralph Schoenrich , James Binney

The {\it best} chemical evolution models for the galactic disk computed by different groups with different assumptions are compared with each other and with the observational constraints. Differences and similarities between the models are…

Astrophysics · Physics 2007-05-23 Monica Tosi

The distribution of chemical elements in the hot intracluster medium (ICM) retains valuable information about the enrichment and star formation histories of galaxy clusters, and on the feedback and dynamical processes driving the evolution…

Cosmology and Nongalactic Astrophysics · Physics 2018-12-05 V. Biffi , F. Mernier , P. Medvedev

Initial conditions are set by Big bang nucleosynthesis from which we know that 90 per cent of baryons are dark and have essentially unknown chemical composition. In our own Galaxy, there are many clues from individual stars in different…

Astrophysics · Physics 2007-05-23 B. E. J. Pagel

We study the long-term evolution of the Milky Way (MW) over cosmic time by modeling the star formation, cosmic rays, metallicity, stellar dynamics, outflows and inflows of the galactic system to obtain various insights into the galactic…

Astrophysics of Galaxies · Physics 2023-12-11 Jiro Shimoda , Shu-ichiro Inutsuka , Masahiro Nagashima

We calculate Galactic Chemical Evolution (GCE) of Mo and Ru by taking into account the contribution from $\nu p$-process nucleosynthesis. We estimate yields of $p$-nuclei such as $^{92,94}\mathrm{Mo}$ and $^{96,98}\mathrm{Ru}$ through the…