English
Related papers

Related papers: SIMBA-C: An updated chemical enrichment model for …

200 papers

The evolution of the content of heavy elements in galaxies, the relative chemical abundances, their spatial distribution, and how these scale with various galactic properties, provide unique information on the galactic evolutionary…

Astrophysics of Galaxies · Physics 2019-02-13 R. Maiolino , F. Mannucci

In this review I outline some ideas in chemical evolution, necessary for understanding the evolution of galaxies from measured elemental abundance ratios. I then discuss abundance results from studies of Local Group dwarf galaxies and the…

Astrophysics of Galaxies · Physics 2010-11-24 Andrew McWilliam

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

We present a new approach to study galaxy evolution in a cosmological context. We combine cosmological merger trees and semi-analytic models of galaxy formation to provide the initial conditions for multi-merger hydrodynamic simulations. In…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Benjamin P. Moster , Andrea V. Macciò , Rachel S. Somerville

We present four large sets of evolutionary tracks for stars with initial chemical compositions [Y=0.250, Z=0.008], [Y=0.273, Z=0.019], [Y=0.320, Z=0.040] and [Y=0.390, Z=0.070] and enhancement of alpha elements with respect to the solar…

Astrophysics · Physics 2007-05-23 Bernardo Salasnich , Leo Girardi , Achim Weiss , Cesare Chiosi

The elemental abundances of symbiotic giants are essential to address the role of chemical composition in the evolution of symbiotic binaries, to map their parent population, and to trace their mass transfer history. However, the number of…

Solar and Stellar Astrophysics · Physics 2015-11-16 Cezary Galan , Joanna Mikolajewska , Kenneth H. Hinkle , Richard R. Joyce

We study the relations between luminosity and chemical abundance profiles of spiral galaxies, using detailed models for the chemical and spectro-photometric evolution of galactic discs. The models are ``calibrated'' on the Milky Way disc…

Astrophysics · Physics 2009-10-31 N. Prantzos , S. Boissier

In previous works, we computed abundances for the red giant in nearly four dozen S-type symbiotic systems (SySt). The abundances provide information about metallicity, evolutionary status, and possible memberships in Galactic stellar…

Solar and Stellar Astrophysics · Physics 2023-10-20 Cezary Gałan , Joanna Mikołajewska , Kenneth H. Hinkle , Richard R. Joyce

We introduce the state-of-the-art semi-analytic model {\small FEGA} (Formation and Evolution of GAlaxies), which incorporates updated prescriptions for key physical processes in galaxy formation. Notably, {\small FEGA} features an…

Astrophysics of Galaxies · Physics 2024-08-20 Emanuele Contini , Sukyoung K. Yi , Seyoung Jeon , Jinsu Rhee

Identification of chemically similar stars using elemental abundances is core to many pursuits within Galactic archaeology. However, measuring the chemical likeness of stars using abundances directly is limited by systematic imprints of…

Astrophysics of Galaxies · Physics 2021-10-07 Damien de Mijolla , Melissa K. Ness

To fully harvest the rich library of stellar elemental abundance data available, we require reliable models that facilitate our interpretation of them. Galactic chemical evolution (GCE) models are one such set, and a key part of which are…

Astrophysics of Galaxies · Physics 2018-07-03 Oliver Philcox , Jan Rybizki , Thales Gutcke

We apply a novel method with machine learning to calibrate sub-grid models within numerical simulation codes to achieve convergence with observations and between different codes. It utilizes active learning and neural density estimators.…

Astrophysics of Galaxies · Physics 2022-10-07 Boon Kiat Oh , Hongjun An , Eun-jin Shin , Ji-hoon Kim , Sungwook E. Hong

We present a flexible, detailed model for the evolution of galactic discs in a cosmological context since $z\approx 4$, including a physically-motivated model for radial transport of gas and stars within galactic discs. This expansion…

Astrophysics of Galaxies · Physics 2019-06-19 John C. Forbes , Mark R. Krumholz , Joshua S. Speagle

We present a new semi-analytical model of galaxy formation, GECO (Galaxy Evolution COde), aimed at a better understanding of when and how the two processes of star formation and galaxy assembly have taken place. Our model is structured into…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 E. Ricciardelli , A. Franceschini

The distribution of chemical abundances and their variation in time are important tools to understand the chemical evolution of galaxies: in particular, the study of chemical evolution models can improve our understanding of the basic…

Astrophysics of Galaxies · Physics 2015-05-18 Monica M. Marcon-Uchida , Francesca Matteucci , Roberto D. D. Costa

(Abridged) We present an implementation of stellar evolution and chemical feedback for smoothed particle hydrodynamics (SPH) simulations. We consider the timed release of individual elements by both massive (Type II supernovae and stellar…

Cosmology and Nongalactic Astrophysics · Physics 2009-10-26 Robert P. C. Wiersma , Joop Schaye , Tom Theuns , Claudio Dalla Vecchia , Luca Tornatore

We study the stellar population history and chemical evolution of the Milky Way (MW) in a hierarchical LCDM model for structure formation. Using a Monte Carlo method based on the semi-analytical EPS formalism, we reconstruct the merger tree…

Astrophysics · Physics 2008-11-26 S. Salvadori , R. Schneider , A. Ferrara

We analyse the evolution of the properties of the low-redshift Intergalactic Medium (IGM) using high-resolution hydrodynamic simulations that include a detailed chemical evolution model. We focus on the effects that two different forms of…

Astrophysics of Galaxies · Physics 2011-04-07 Luca Tornatore , Stefano Borgani , Matteo Viel , Volker Springel

We introduce \textsc{Gizmo-Simba}, a new suite of galaxy cluster simulations within \textsc{The Three Hundred} project. \textsc{The Three Hundred} consists of zoom re-simulations of 324 clusters with $M_{200}\gtrsim 10^{14.8}M_\odot$ drawn…

We present single-S\'ersic two-dimensional model fits to 167,600 galaxies modelled independently in the ugrizYJHK bandpasses using reprocessed Sloan Digital Sky Survey Data Release Seven (SDSS DR7) and UKIRT Infrared Deep Sky Survey Large…