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Multi-scale initial conditions for cosmological simulations
We discuss a new algorithm to generate multi-scale initial conditions with multiple levels of refinements for cosmological 'zoom-in' simulations. The method uses an adaptive convolution of GaussianExpand
The Formation of the First Star in the Universe
We describe results from a fully self-consistent three-dimensional hydrodynamical simulation of the formation of one of the first stars in the Universe. In current models of structure formation, darkExpand
Modeling primordial gas in numerical cosmology
Abstract We have reviewed the chemistry and cooling behavior of low-density (n ≲ 10 4 cm −3 ) primordial gas and devised a model which involves 19 collisional and 9 radiative processes and isExpand
Simulations of Early Structure Formation: Primordial Gas Clouds
We use cosmological simulations to study the origin of primordial star-forming clouds in a ΛCDM universe, by following the formation of dark matter halos and the cooling of gas within them. To modelExpand
How small were the first cosmological objects
The minimum mass that a virialized gas cloud must have in order to be able to cool in a Hubble time is computed, using a detailed treatment of the chemistry of molecular hydrogen. With a simple modelExpand
Simulations of Pregalactic Structure Formation with Radiative Feedback
We present results from three-dimensional hydrodynamic simulations of the high-redshift collapse of pregalactic clouds including feedback eUects from a soft photodissociating UV radiation —eld. The HExpand
The birth of a galaxy – III. Propelling reionization with the faintest galaxies
MNRAS 442, 2560–2579 (2014) doi:10.1093/mnras/stu979 The birth of a galaxy – III. Propelling reionization with the faintest galaxies John H. Wise, 1‹ Vasiliy G. Demchenko, 1 Martin T. Halicek, 1Expand
The DART Imaging And CaT Survey of the Fornax Dwarf Spheroidal Galaxy
Aims. As part of the DART project we have used the ESO ESO/2.2m Wide Field Imager in conjunction with the VLT/FLAMES(star star) GIRAFFE spectrograph to study the detailed properties of the resolvedExpand
This paper describes the open-source code Enzo, which uses block-structured adaptive mesh refinement to provide high spatial and temporal resolution for modeling astrophysical fluid flows. The codeExpand
Formation of Primordial Stars in a ΛCDM Universe
We study the formation of the first generation of stars in the standard cold dark matter model. We use a very high resolution cosmological hydrodynamic simulation that achieves a dynamic range ofExpand