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We discuss the evolution of oxygen, carbon and nitrogen in galaxies of different morphological type by adopting detailed chemical evolution models with different star formation histories (continuous star formation or starbursts). We start…

Astrophysics · Physics 2009-11-07 Cristina Chiappini , Donatella Romano , Francesca Matteucci

The evolution and distribution of metals within galaxies are critical for understanding galactic evolution and star formation processes, but the mechanisms responsible for shaping this distribution remain uncertain. In this study, we carry…

Astrophysics of Galaxies · Physics 2025-02-03 Chuhan Zhang , Zefeng Li , Zipeng Hu , Mark R. Krumholz

Sun-like stars are well represented in the solar neighbourhood but are currently under-utilised, with many studies of chemical and kinematic evolution focusing on red giants (which can be observed further away) or turn-off stars (which have…

Solar and Stellar Astrophysics · Physics 2024-12-13 Christian Lehmann , Michael T. Murphy , Fan Liu , Chris Flynn

We computed the chemical evolution of spiral bulges hosting Seyfert nuclei, based on updated chemical and spectro-photometrical evolution models for the bulge of our Galaxy, made predictions about other quantities measured in Seyferts, and…

Astrophysics · Physics 2009-11-13 S. K. Ballero , F. Matteucci , L. Ciotti , F. Calura , P. Padovani

We describe a long term project aimed at deriving information on the chemical evolution of the Galactic disk from a large sample of open clusters. The main property of this project is that all clusters are analyzed in a homogeneous way, to…

Astrophysics · Physics 2008-11-26 Angela Bragaglia , Monica Tosi

Context. The Galactic chemical evolution of sulphur is still under debate. At low metallicities some studies find no correlation between [S/Fe] and [Fe/H], others find [S/Fe] increasing towards lower metallicities, and still others find a…

Astrophysics of Galaxies · Physics 2013-12-18 E. Matrozis , N. Ryde , A. K. Dupree

With the advent of large spectroscopic surveys the amount of high quality chemo-dynamical data in the Milky Way (MW) increased tremendously. Accurately and correctly capturing and explaining the detailed features in the high-quality…

We run a three-dimensional Galactic chemical evolution (GCE) model to follow the propagation of Mn-53 from supernovae of type Ia (SNIa), Fe-60 from core-collapse supernovae (CCSNe), Hf-182 from intermediate mass stars (IMSs), and Pu-244…

Astrophysics of Galaxies · Physics 2025-10-16 Benjamin Wehmeyer , Andrés Yagüe López , Benoit Côté , Maria K. Pető , Chiaki Kobayashi , Maria Lugaro

The chemical evolution of galaxies is investigated within the framework of the star formation rate (SFR) dependent integrated galactic initial mass function (IGIMF). We study how the global chemical evolution of a galaxy and in particular…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Simone Recchi , Francesco Calura , Pavel Kroupa

An ensemble of chemical abundances probing different nucleosynthetic channels can be leveraged to build a comprehensive understanding of the chemical and structural evolution of the Galaxy. Using GALAH DR3 data, we seek to trace the…

Astrophysics of Galaxies · Physics 2022-05-25 Danny Horta , Melissa K. Ness , Jan Rybizki , Ricardo P. Schiavon , Sven Buder

Chemical evolution models are useful for understanding the formation and evolution of stars and galaxies. Model predictions will be more robust as more observational constraints are used. We present chemical evolution models for the dwarf…

Cosmology and Nongalactic Astrophysics · Physics 2011-08-31 Liliana Hernandez-Martinez , Leticia Carigi , Miriam Peña , Manuel Peimbert

The goal of this investigation is to reconstruct the cosmic star formation rate density history from local observations and in doing so to gain insight into how galaxies might have formed and evolved. A new chemical evolution model is…

Astrophysics · Physics 2009-11-10 F. D. A. Hartwick

We combine the latest observationally motivated constraints on stellar properties in dark matter haloes, along with data-driven predictions for the atomic (HI) and molecular (H$_2$) gas evolution in galaxies, to derive empirical…

Astrophysics of Galaxies · Physics 2020-06-10 Hamsa Padmanabhan , Abraham Loeb

Intergalactic filaments form the foundation of the cosmic web that connect galaxies together, and provide an important reservoir of gas for galaxy growth and accretion. Here we present very high resolution two-dimensional simulations of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 William J Gray , Evan Scannapieco

In this review I focus on a few selected topics, where recent theoretical and/or observational progress has been made and important developments are expected in the future. They include: 1) Evolution of isotopic ratios, 2) Mixing processes…

Astrophysics · Physics 2009-11-07 N. Prantzos

We present predictions of the evolution of the light elements, Li, Be, and B, in the early epochs of the Galactic halo, using a model of supernova-induced chemical evolution based on contributions from supernovae (SNe) and cosmic rays…

Astrophysics · Physics 2009-10-31 Takeru Ken Suzuki , Yuzuru Yoshii

We construct empirical models of star-forming galaxy evolution assuming that individual galaxies evolve along well-known scaling relations between stellar mass, gas mass and star formation rate following a simple description of chemical…

We present an updated release of the BaSTI (a Bag of Stellar Tracks and Isochrones) stellar model and isochrone library for a solar scaled heavy element distribution. The main input physics changed from the previous BaSTI release include…

Astrophysics of Galaxies · Physics 2018-04-11 S. L. Hidalgo , A. Pietrinferni , S. Cassisi , M. Salaris , A. Mucciarelli , A. Savino , A. Aparicio , V. Silva Aguirre , K. Verma

One-zone Galactic Chemical Evolution (GCE) models have provided useful insights on a great wealth of average abundance patterns in many environments, especially for the Milky Way and its satellites. However, the scatter of such abundance…

Astrophysics of Galaxies · Physics 2023-04-12 Jinning Liang , Eda Gjergo , Xilong Fan

Spectroscopic observations of distant cosmological sources continue to exhibit a surprising result; that the chemical abundance of the universe seems to be approximately solar for the observed sources at redshifts of 5, 6, and even 7, even…

Astrophysics · Physics 2007-08-23 Rudolph E. Schild