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In this paper we analyse the statistics of the 2D gas-phase oxygen abundance distributions of 100 nearby galaxies drawn from the Calar Alto Legacy Integral Field spectroscopy Area survey. After removing the large-scale radial metallicity…

The evolution of the metal content of galaxies and its relations to other global properties [such as total stellar mass (M*), circular velocity, star formation rate (SFR), halo mass, etc.] provides important constraints on models of galaxy…

Astrophysics of Galaxies · Physics 2015-07-15 Maria E. De Rossi , Tom Theuns , Andreea S. Font , Ian G. McCarthy

The gas-phase metallicity distribution within galaxies records critical information about galactic evolution. In this work we investigate how active galactic nuclei (AGN) influence this distribution by measuring the two-point correlation…

Astrophysics of Galaxies · Physics 2024-12-02 Song-lin Li , Zefeng Li , Emily Wisnioski , Mark R. Krumholz , Sebastián F. Sánchez

Understanding the spatial distribution of metals within galaxies allows us to study the processes of chemical enrichment and mixing in the interstellar medium (ISM). In this work, we map the two-dimensional distribution of metals using a…

By means of chemical evolution models for ellipticals, spirals and irregular galaxies, we aim at investigating the physical meaning and the redshift evolution of the mass-metallicity relation as well as how this relation is connected with…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 F. Calura , A. Pipino , C. Chiappini , F. Matteucci , R. Maiolino , -

We use cosmological hydrodynamic simulations to investigate how inflows, star formation, and outflows govern the the gaseous and metal content of galaxies. In our simulations, galaxy metallicities are established by a balance between…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Romeel Davé , Kristian Finlator , Benjamin D. Oppenheimer

We study the origin and cosmic evolution of the mass-metallicity relation (MZR) in star-forming galaxies based on a full, numerical chemical evolution model. The model was designed to match the local MZRs for both gas and stars…

Astrophysics of Galaxies · Physics 2018-09-26 Jianhui Lian , Daniel Thomas , Claudia Maraston

We quantify the correlations between gas-phase and stellar metallicities and global properties of galaxies, such as stellar mass, halo mass, age and gas fraction, in the Evolution and Assembly of GaLaxies and their Environments (EAGLE)…

Astrophysics of Galaxies · Physics 2017-11-08 María Emilia De Rossi , Richard G. Bower , Andreea S. Font , Joop Schaye , Tom Theuns

The metallicity of galaxies, and its variation with galactocentric radius, provides key insights into the formation histories of galaxies and the physical processes driving their evolution. In this work, we analyze the radial metallicity…

We study the correlation between stellar mass and stellar metallicity in the Evolution and Assembly of GaLaxies and their Environments (EAGLE) suite of cosmological hydrodynamical simulations. At a given stellar mass, simulated galaxies…

Astrophysics of Galaxies · Physics 2018-05-17 María Emilia De Rossi , Richard G. Bower , Andreea S. Font , Joop Schaye , Tom Theuns

We predict the evolution of galaxy scaling relationships from cosmological, hydrodynamical simulations, that reproduce the scaling relations of present-day galaxies. Although we do not assume co-evolution between galaxies and black holes a…

Astrophysics of Galaxies · Physics 2016-09-07 Philip Taylor , Chiaki Kobayashi

Nuclear inflows of metal-poor interstellar gas triggered by galaxy interactions can account for the systematically lower central oxygen abundances observed in local interacting galaxies. Here, we investigate the metallicity evolution of a…

Astrophysics of Galaxies · Physics 2015-05-28 Paul Torrey , Thomas J. Cox , Lisa Kewley , Lars Hernquist

We use fossil record techniques on the CALIFA sample to study how galaxies in the local universe have evolved in terms of their chemical content. We show how the metallicity and the mass-metallicity relation (MZR) evolve through time for…

Astrophysics of Galaxies · Physics 2021-04-28 A. Camps-Fariña , S. F. Sanchez , E. A. D. Lacerda , L. Carigi , R. García-Benito , D. Mast , L. Galbany

The dust abundance of the interstellar medium plays an important role in galaxy physics, the chemical evolution of matter and the absorption and re-emission of stellar light. The last years have seen a surge in observational and theoretical…

Astrophysics of Galaxies · Physics 2022-04-06 Gergö Popping , Céline Péroux

We analyse the spatial statistics of the 2D gas-phase oxygen abundance distributions in a sample of 219 local galaxies. We introduce a new adaptive binning technique to enhance the signal-to-noise ratio of weak lines, which we use to…

Current galaxy observations suggest that a roughly linear correlation exists between the [CII] emission and the star formation rate, either as spatially-resolved or integrated quantities. Observationally, this correlation seems to be…

Astrophysics of Galaxies · Physics 2020-01-22 Alessandro Lupi , Stefano Bovino

We use high-resolution cosmological zoom-in simulations from the Feedback in Realistic Environment (FIRE) project to study the galaxy mass-metallicity relations (MZR) from z=0-6. These simulations include explicit models of the multi-phase…

We present a new model for the evolution of gas phase metallicity gradients in galaxies from first principles. We show that metallicity gradients depend on four ratios that collectively describe the metal equilibration timescale,…

Astrophysics of Galaxies · Physics 2021-02-24 Piyush Sharda , Mark R. Krumholz , Emily Wisnioski , John C. Forbes , Christoph Federrath , Ayan Acharyya

Recent X-ray observations of galaxy clusters show that the distribution of intra-cluster medium (ICM) metallicity is remarkably uniform in space and time. In this paper, we analyse a large sample of simulated objects, from poor groups to…

For the same stellar mass, physically smaller star-forming galaxies are also metal richer (Ellison et al. 2008). What causes the relation remains unclear. The central star-forming galaxies in the EAGLE cosmological numerical simulation…

Astrophysics of Galaxies · Physics 2018-06-13 J. Sanchez Almeida , C. Dalla Vecchia
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