中文
相关论文

相关论文: Modelling Galaxies with a Multi-Phase ISM in 3d

200 篇论文

We present a new particle code for modelling the evolution of galaxies. The code is based on a multi-phase description for the interstellar medium (ISM). We included star formation (SF), stellar feedback by massive stars and planetary…

天体物理学 · 物理学 2009-11-11 Stefan Harfst , Christian Theis , Gerhard Hensler

We present a multi-phase representation of the ISM in NB-TSPH simulations of galaxy formation and evolution with particular attention to the case of early-type galaxies. Cold gas clouds are described by the so-called sticky particles…

天体物理学 · 物理学 2009-11-13 Emiliano Merlin , Cesare Chiosi

We present a 3d code for the dynamical evolution of a multi-phase interstellar medium (ISM) coupled to stars via star formation (SF) and feedback processes. The multi-phase ISM consists of clouds (sticky particles) and diffuse gas (SPH):…

天体物理学 · 物理学 2009-11-07 S. Harfst , Ch. Theis , G. Hensler

We have incorporated star formation algorithms into a hybrid N-body/smoothed particle hydrodynamics code (TREESPH) in order to describe the star forming properties of disk galaxies over timescales of a few billion years. The models employ a…

天体物理学 · 物理学 2007-05-23 Chris Mihos , Lars Hernquist

We present a new particle based code with a multi-phase description of the ISM implemented in order to follow the chemo-dynamical evolution of galaxies. The multi-phase ISM consists of clouds (sticky particles) and diffuse gas (SPH):…

天体物理学 · 物理学 2009-11-07 Stefan Harfst , Christian Theis , Gerhard Hensler

We present our recently developed 3-dimensional chemodynamical code for galaxy evolution. This code follows the evolution of different galactic components like stars, dark matter and different components of the interstellar medium (ISM),…

天体物理学 · 物理学 2009-11-07 P. Berczik , G. Hensler , Ch. Theis , R. Spurzem

We present a method for modelling star-forming clouds that combines two different models of the thermal evolution of the interstellar medium (ISM). In the combined model, where the densities are low enough that at least some part of the…

太阳与恒星天体物理 · 物理学 2015-03-19 Matthew R. Bate , Eric R. Keto

We present results of cosmological simulations of disk galaxies carried out with the GADGET-3 TreePM+SPH code, where star formation and stellar feedback are described using our MUlti Phase Particle Integrator (MUPPI) model. This description…

星系天体物理 · 物理学 2014-11-17 Giuseppe Murante , Pierluigi Monaco , Stefano Borgani , Luca Tornatore , Klaus Dolag , David Goz

We simulate the multi-phase interstellar medium randomly heated and stirred by supernovae, with gravity, differential rotation and other parameters of the solar neighbourhood. Here we describe in detail both numerical and physical aspects…

星系天体物理 · 物理学 2013-04-03 F. A. Gent , A. Shukurov , A. Fletcher , G. R. Sarson , M. J. Mantere

We present a new model of the three-dimensional distribution of molecular gas in the Milky Way Galaxy, based on CO line data. Our analysis is based on a gas-flow simulation of the inner Galaxy using smoothed-particle hydrodynamics (SPH)…

天体物理学 · 物理学 2009-06-23 Martin Pohl , Peter Englmaier , Nicolai Bissantz

First we present a recently developed 3D chemodynamical code for galaxy evolution from the K**2 collaboration. It follows the evolution of all components of a galaxy such as dark matter, stars, molecular clouds and diffuse interstellar…

天体物理学 · 物理学 2009-11-10 R. Spurzem , P. Berczik , G. Hensler , Ch. Theis , P. Amaro-Seoane , M. Freitag , A. Just

We present a model for star formation and supernova feedback that describes the multi-phase structure of star forming gas on scales that are typically not resolved in cosmological simulations. Our approach includes radiative heating and…

天体物理学 · 物理学 2011-08-19 Volker Springel , Lars Hernquist

A new Chemo - Dynamical Smoothed Particle Hydrodynamic (CD - SPH) code is presented. The disk galaxy is described as a multi - fragmented gas and star system, embedded in a cold dark matter halo. The star formation (SF) process, SNII, SNIa…

天体物理学 · 物理学 2009-10-31 Peter Berczik

We introduce the Stars and MUltiphase Gas in GaLaxiEs -- SMUGGLE model, an explicit and comprehensive stellar feedback model for the moving-mesh code arepo. This novel sub-resolution model resolves the multiphase gas structure of the…

星系天体物理 · 物理学 2019-09-25 Federico Marinacci , Laura V. Sales , Mark Vogelsberger , Paul Torrey , Volker Springel

We introduce the star formation and Supernova (SN) feedback model of the SATIN (Simulating AGNs Through ISM with Non-Equilibrium Effects) project to simulate the evolution of the star forming multi-phase interstellar medium (ISM) of entire…

星系天体物理 · 物理学 2023-06-28 Rebekka Bieri , Thorsten Naab , Sam Geen , Jonathan P. Coles , Rüdiger Pakmor , Stefanie Walch

Galaxy interactions are a common phenomenon in clusters of galaxies. Especially major mergers are of particular importance, because they can change the morphological type of galaxies. They have an impact on the mass function of galaxies and…

星系天体物理 · 物理学 2015-05-14 J. Weniger , Ch. Theis , S. Harfst

We describe numerical methods for incorporating gas dynamics into cosmological simulations and present illustrative applications to the cold dark matter (CDM) scenario. Our evolution code, a version of TreeSPH (Hernquist \& Katz 1989)…

天体物理学 · 物理学 2011-08-31 Neal Katz , David H. Weinberg , Lars Hernquist

The interstellar medium (ISM) in galaxies is multiphase and cloudy, with stars forming in the very dense, cold gas found in Giant Molecular Clouds (GMCs). Simulating the evolution of an entire galaxy, however, is a computational problem…

宇宙学与河外天体物理 · 物理学 2015-05-20 Leila C. Powell , Frederic Bournaud , Damien Chapon , Julien Devriendt , Adrianne Slyz , Romain Teyssier

We develop a model to implement metal enrichment in a cosmological context based on the hydrodynamical AP3MSPH code described by Tissera, Lambas and Abadi (1997).The star formation model is based on the Schmidt law and has been modified in…

天体物理学 · 物理学 2009-10-31 M. B. Mosconi , P. B. Tissera , S. A. Cora , D. G. Lambas

A code computing consistently the evolution of stars, gas and dust, as well as the energy they radiate, is required to derive reliably the history of galaxies by fitting synthetic SEDs to multiwavelength observations. The new code…

星系天体物理 · 物理学 2019-03-27 Michel Fioc , Brigitte Rocca-Volmerange
‹ 上一页 1 2 3 10 下一页 ›