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We present a multi-zone galactic chemical evolution (GCE) model for the Milky Way that takes the most recently updated yields of major nucleosynthesis channels into account. It incorporates physical processes commonly found in previous GCE…

Astrophysics of Galaxies · Physics 2023-07-11 Boquan Chen , Michael R. Hayden , Sanjib Sharma , Joss Bland-Hawthorn , Chiaki Kobayashi , Amanda I. Karakas

We study the evolution of Milky Way thick and thin discs in the light of the most recent observational data. In particular, we analyze abundance gradients of O, N, Fe and Mg along the thin disc as well as the [Mg/Fe] vs. [Fe/H] relations…

Astrophysics of Galaxies · Physics 2020-09-10 Marco Palla , Francesca Matteucci , Emanuele Spitoni , Fiorenzo Vincenzo , Valeria Grisoni

We constrain the formation history of the Milky Way bulge using a two-infall Galactic Chemical Evolution (GCE) framework implemented in the OMEGA++ code. We recover a best-fit scenario in which the bulge forms through an early, rapid…

Astrophysics of Galaxies · Physics 2025-12-10 Niall Miller , Meridith Joyce , Christian I. Johnson , Jamie Tayar , Thomas Trueman , R Michael Rich

Chemical abundances are an essential tool in untangling the Milky Way's enrichment history. However, the evolution of the interstellar medium abundance gradient with cosmic time is lost as a result of radial mixing processes. For the first…

Observational data have revealed a clear dichotomy in the [{\alpha}/Fe] vs. [Fe/H] diagram of the Milky Way thick and thin disc stars. Many recent studies have shown evidences of a co-evolution phase between the high- and low-{\alpha} disc…

Astrophysics of Galaxies · Physics 2026-05-12 V. Grisoni , E. Spitoni , F. Matteucci

The variation of metal production over time and its dilution in the interstellar medium depend on the star formation and gas accretion rates. Measuring age-chemistry relations across the Milky Way disk provides key constraints on the gas…

Astrophysics of Galaxies · Physics 2025-05-28 Valeria Cerqui , Misha Haywood , Owain Snaith , Paola Di Matteo , Laia Casamiquela

We study the chemical evolution of the thick and thin discs of the Galaxy by comparing detailed chemical evolution models with recent data from the AMBRE Project. The data suggest that the stars in the thick and thin discs form two distinct…

Astrophysics of Galaxies · Physics 2017-11-08 V. Grisoni , E. Spitoni , F. Matteucci , A. Recio-Blanco , P. de Laverny , M. Hayden , Š. Mikolaitis , C. C. Worley

We extend our model of chemical evolution that successfully account for the main observables in the solar neighborhood (Alibes, Labay & Canal 2001) to the whole Milky Way halo and disk. We assume an inside-out scenario for the assembling of…

Astrophysics · Physics 2007-05-23 Andreu Alibes , Javier Labay , Ramon Canal

In this paper we present a new chemical evolution model for the Galaxy which assumes two main infall episodes for the formation of halo-thick disk and thin disk, respectively. We do not try to take into account explicitly the evolution of…

Astrophysics · Physics 2009-10-28 C. Chiappini , F. Matteucci , R. Gratton

The formation and chemical evolution of the Milky Way Galaxy is numerically simulated by developing a Monte Carlo approach to predict the elemental abundance gradients and other galactic features using the revised solar abundance. The…

Astrophysics of Galaxies · Physics 2018-10-10 Sandeep Sahijpal , Tejpreet Kaur

We present a new chemical evolution model for the Galaxy that assumes three main infall episodes of primordial gas for the formation of halo, thick and thin disk, respectively. We compare our results with selected data taking into account…

Astrophysics of Galaxies · Physics 2015-06-17 A. Micali , F. Matteucci , D. Romano

Recent observations demonstrate that the thin and thick disks of the Galaxy have different chemical abundance trends and evolution timescales. The relative abundances of $\alpha$-elements in the thick Galactic disk are increased relative to…

Astrophysics · Physics 2009-11-11 T. V. Nykytyuk , T. V. Mishenina

[Abridged] In this first paper of this series, we present a new approach for studying the chemo-dynamical evolution in disk galaxies, which consists of fusing disk chemical evolution models with compatible numerical simulations of galactic…

Astrophysics of Galaxies · Physics 2015-06-11 I. Minchev , C. Chiappini , M. Martig

Chemical evolution models (CEM) are important tools to understand the formation and evolution of the components of the Milky Way Galaxy and other galaxies in the universe. The Galactic bulge is the only galaxy bulge that can be resolved and…

Astrophysics of Galaxies · Physics 2019-05-07 O. Cavichia , M. Mollá

We study the chemical evolution of Zr, La, Ce and Eu in the Milky Way discs and bulge by means of chemical evolution models compared with recent spectroscopic data. We consider detailed chemical evolution models for the Galactic thick disc,…

Astrophysics of Galaxies · Physics 2020-01-15 V. Grisoni , G. Cescutti , F. Matteucci , R. Forsberg , H. Jönsson , N. Ryde

The Milky Way serves as a template for understanding the formation and evolution of late-type massive disk galaxies since we can obtain detailed chemical and kinematic information for large samples of individual stars. However, the early…

Our understanding of the chemical evolution of galaxies has advanced through measurements from both distant galaxies across redshift, and our own Milky Way (MW). To form a comprehensive picture, it is essential to unify these constraints,…

We develop a chemical evolution model in order to study the star formation history of the Milky Way. Our model assumes that the Milky Way is formed from a closed box-like system in the inner regions, while the outer parts of the disc…

Astrophysics of Galaxies · Physics 2015-06-10 O. Snaith , M. Haywood , P. Di Matteo , M. D. Lehnert , F. Combes , D. Katz , A. Gómez

We explore the influence of the Milky Way galaxy's chemical evolution on the formation, structure, and habitability of the Solar system. Using a multi-zone Galactic Chemical Evolution (GCE) model, we successfully reproduce key observational…

Astrophysics of Galaxies · Physics 2023-10-17 Junichi Baba , Takayuki R. Saitoh , Takuji Tsujimoto
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