Do Small-Scale Dark Matter Fluctuations Govern the Fragmentation of Primordial Gas?

Details Do Small-Scale Dark Matter Fluctuations Govern the Fragmentation of Primordial Gas? Do Small-Scale Dark Matter Fluctuations Govern the Fragmentation of Primordial Gas?

1998-12-15

arxiv.org/abs/astro-ph/9812290v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 eps figures, uses aipproc.sty to appear in Proceedings: After the Dark Ages, 9th October conference

Scientific paper

10.1063/1.58636

In order to constrain the initial mass function of the first generation of stars (Population III), one has to study the fragmentation properties of primordial gas. We present results from 3D simulations, based on Smoothed Particle Hydrodynamics, which explore the idea that small-scale fluctuations in the (cold) dark matter recreate a filamentary and clumpy structure in the gas component on scales smaller than the initial Jeans mass, where all primordial fluctuations would have been wiped out.

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