One simulation to fit them all – changing the background parameters of a cosmological N-body simulation

We demonstrate that the output of a cosmological N-body simulation can, to remarkable accuracy, be scaled to represent the growth of large-scale structure in a cosmology with parameters similar to but different from those originally assumed. Our algorithm involves three steps: a reassignment of leng...

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Vydáno v:	Monthly notices of the Royal Astronomical Society Ročník 405; číslo 1; s. 143 - 154
Hlavní autoři:	Angulo, R. E., White, S. D. M.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Oxford, UK Blackwell Publishing Ltd 11.06.2010 Wiley-Blackwell Oxford University Press
Témata:	Algorithms Amplitudes Astronomy Computer simulation Cosmology cosmology: theory Earth, ocean, space Errors Exact sciences and technology Halos large-scale structure of Universe Mathematical models Scale (corrosion) Simulation Universe large-scale structure of Universe cosmology: theory Red shift Fluctuations Uncertainty Coupling constants Galaxies Power spectra Digital simulation N body system WMAP satellite Large-scale structure Baryons Algorithms Cosmological parameter Galaxy formation Center of mass Positions Cosmology Models Performance Mass spectra
ISSN:	0035-8711, 1365-2966
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