Intergalactic baryon-rich regions at high redshift
| Autor: | Harford, A. Gayler, Hamilton, Andrew J. S., Gnedin, Nickolay Y. |
|---|---|
| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Mon.Not.Roy.Astron.Soc.389:880-888,2008 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1111/j.1365-2966.2008.13608.x |
| Popis: | Using a high resolution cosmological simulation of reionization we have examined the differing structures formed by gas and dark matter at a redshift of 5.1. Baryon-rich regions form a small number of filaments, which connect the largest galaxies in the simulation. More detailed examination of the ten largest galaxies reveals long, slender gaseous filaments about 5 proper kpc in width radiating from the galaxy centers. Extending out from each filament are a few smooth, thin, nearly planar gaseous sheets. By contrast, the dark matter concentrates into quasi-spherical bodies. The results have implications for our understanding of structure formation in the early universe and of the Lyman alpha forest. Comment: 9 pages, many eps figures |
| Databáze: | arXiv |
| Externí odkaz: |
|