Numerical simulations of dwarf galaxy merger trees
نویسندگان
چکیده
منابع مشابه
Numerical Simulations of Galaxy Formation
An overview over the current status of modeling galaxies by means of numerical simulations is given. After a short description of how galaxies form in hierarchically clustering scenarios, success and failures of current simulations are demonstrated using three different applications: the morphology of present day galaxies; the appearance of high redshift galaxies; and the nature of the Ly-α for...
متن کاملBuilding merger trees from cosmological N-body simulations towards improving galaxy formation models using subhaloes
Context. In the past decade or so, using numerical N-body simulations to describe the gravitational clustering of dark matter (DM) in an expanding universe has become the tool of choice for tackling the issue of hierarchical galaxy formation. As mass resolution increases with the power of supercomputers, one is able to grasp finer and finer details of this process, resolving more and more of th...
متن کاملIncorporating the molecular gas phase in galaxy - size numerical simulations : first applications in dwarf galaxies
We present models of the coupled evolution of the gaseous and stellar content of galaxies using a hybrid N-body/hydrodynamics code, a Jeans mass criterion for the onset of star formation from gas, while incorporating for the first time the formation of H2 out of HI gas as part of such a model. We do so by formulating a subgrid model for gas clouds that uses well-known cloud scaling relations an...
متن کاملMolecular Outflows in Galaxy Merger Simulations with Embedded Agn
We study the effects of feedback from active galactic nuclei (AGN) on emission from molecular gas in galaxy mergers by combining hydrodynamic simulations which include black holes with a three-dimensional, non-local thermodynamic equilibrium (LTE) radiative transfer code. We find that molecular clouds entrained in AGN winds produce an extended CO morphology with significant off-nuclear emission...
متن کاملHigh - resolution numerical simulations for galaxy formation
Understanding of the structure evolution in the Universe has been greatly advanced with a rapid progress in high-resolution cosmological simulations. In this contribution, we report a new set of cosmological simulations with 512 (∼ 1.4 × 10) particles in a simulation box of 100hMpc. With this unprecedented resolution, we have successfully overcomed the over-merging problem while retaining a cos...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2014
ISSN: 1365-2966,0035-8711
DOI: 10.1093/mnras/stu1071