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Related papers: Modeling the Disk (three-phase) Interstellar Mediu…

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Outflows are a key part of the galactic gas cycle and crucial in shaping the star formation activity in their host galaxy. Yet, in simulations of galaxy evolution, modeling these outflows in their multi-phase nature and over the relevant…

Astrophysics of Galaxies · Physics 2025-08-26 Francesco Bollati , Rainer Weinberger

Galaxy evolution reveals itself not only through the evolving properties of galaxies themselves but also through its impact on the surrounding environment. The intergalactic medium in particular holds a fossil record of past galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2009-03-25 Jesper Rasmussen , Trevor J. Ponman

Dust grains play a fundamental role in galaxies, influencing both their evolution and observability. As a result, incorporating dust physics into galaxy evolution simulations is essential. This is a challenging task due to the finite…

Astrophysics of Galaxies · Physics 2025-04-16 Massimiliano Parente

The intergalactic medium - the cosmic gas that fills the great spaces between the galaxies - is affected by processes ranging from quantum fluctuations in the very early universe to radiative emission from newly-formed stars. This gives the…

Astrophysics · Physics 2008-11-26 Rennan Barkana , Abraham Loeb

[Abridged] Star and planet formation are the complex outcomes of gravitational collapse and angular momentum transport mediated by protostellar and protoplanetary disks. In this review we focus on the role of gravitational instability in…

Solar and Stellar Astrophysics · Physics 2016-10-05 Kaitlin M. Kratter , Giuseppe Lodato

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

In the present universe, the gas is a minor component of giant galaxies, and its dominant phase is atomic (HI). During galaxy evolution in cosmic times, models predict that gas fractions were much higher in galaxies, and gas phases could be…

Astrophysics of Galaxies · Physics 2018-03-14 Francoise Combes

In galactic disks, galactic rotation sets the bulk motion of gas, and its energy and momentum can be transferred toward small scales. Additionally, in the interstellar medium, random and noncircular motions arise from stellar feedback,…

Only recently, complex models that include the global dynamics from dwarf satellite galaxies, dark matter halo structure, gas infalls, and stellar disk in a cosmological context became available to study the dynamics of disk galaxies such…

Astrophysics of Galaxies · Physics 2023-11-14 B. García-Conde , T. Antoja , S. Roca-Fàbrega , F. Gómez , P. Ramos , N. Garavito-Camargo , MA. Gómez-Flechoso

We examine how the atomic and molecular gas components of galaxies evolve to higher redshifts using the semi-analytic galaxy formation models of Fu et al. (2010) in which we track the surface density profiles of gas in disks. We adopt two…

Astrophysics of Galaxies · Physics 2015-06-04 Jian Fu , Guinevere Kauffmann , Cheng Li , Qi Guo

The circumgalactic medium (CGM) of galaxies serves as a record of the influences of outflows and accretion that drive the evolution of galaxies. Feedback from star formation drives outflows that carry mass and metals away from galaxies to…

Studies of the molecular interstellar medium that fuels star formation and supermassive black hole growth in galaxies at cosmological distances have undergone tremendous progress over the past few years. Based on the detection of molecular…

Cosmology and Nongalactic Astrophysics · Physics 2012-02-10 Dominik A. Riechers

In our grid of multiphase chemical evolution models (Moll\'a & D\'iaz, 2005), star formation in the disk occurs in two steps: first, molecular gas forms, and then stars are created by cloud-cloud collisions or interactions of massive stars…

Astrophysics of Galaxies · Physics 2017-04-12 Mercedes Mollá , Ángeles I. Díaz , Yago Ascasibar , Brad K. Gibson

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

The stellar metallicity gradients of disc galaxies provide information on the disc assembly, star formation processes and chemical evolution. They also might store information on dynamical processes which could affect the distribution of…

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

Disk galaxies like the Milky Way are expected to experience gas flows carrying matter toward their centers. This paper investigates the role of these radial gas flows in models of Galactic chemical evolution (GCE). We follow five different…

Astrophysics of Galaxies · Physics 2025-10-08 James W. Johnson

Observations of the interstellar medium are key to deciphering the physical processes regulating star formation in galaxies. However, observational uncertainties and detection limits can bias the interpretation unless carefully modeled.…

Astrophysics of Galaxies · Physics 2020-12-14 Robert Feldmann

Context: The chemical composition of a molecular cloud changes dramatically as it collapses to form a low-mass protostar and circumstellar disk. Two-dimensional (2D) chemodynamical models are required to properly study this process. Aims:…

Astrophysics of Galaxies · Physics 2015-05-30 R. Visser , S. D. Doty , E. F. van Dishoeck

In this series of lectures I discuss the basic principles and the modelling of the chemical evolution of galaxies. In particular, I present models for the chemical evolution of the Milky Way galaxy and compare them with the available…

Astrophysics · Physics 2007-05-23 F. Matteucci
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