Semantic Scholar Open Access 2014 913 sitasi

Properties of galaxies reproduced by a hydrodynamic simulation

M. Vogelsberger S. Genel V. Springel P. Torrey D. Sijacki +10 lainnya

Abstrak

Previous simulations of the growth of cosmic structures have broadly reproduced the ‘cosmic web’ of galaxies that we see in the Universe, but failed to create a mixed population of elliptical and spiral galaxies, because of numerical inaccuracies and incomplete physical models. Moreover, they were unable to track the small-scale evolution of gas and stars to the present epoch within a representative portion of the Universe. Here we report a simulation that starts 12 million years after the Big Bang, and traces 13 billion years of cosmic evolution with 12 billion resolution elements in a cube of 106.5 megaparsecs a side. It yields a reasonable population of ellipticals and spirals, reproduces the observed distribution of galaxies in clusters and characteristics of hydrogen on large scales, and at the same time matches the ‘metal’ and hydrogen content of galaxies on small scales.

Topik & Kata Kunci

Medicine Physics

Penulis (15)

M. Vogelsberger

S. Genel

V. Springel

P. Torrey

D. Sijacki

Da Xu

G. Snyder

Simeon Bird

D. Nelson

Lars Hernquist Mit

HarvardCfA

Hits

I. Cambridge

Stsci

Ias Princeton

Format Sitasi

APA MLA BibTeX

Vogelsberger, M., Genel, S., Springel, V., Torrey, P., Sijacki, D., Xu, D. et al. (2014). Properties of galaxies reproduced by a hydrodynamic simulation. https://doi.org/10.1038/nature13316

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Informasi Jurnal

Tahun Terbit: 2014
Bahasa: en
Total Sitasi: 913×
Sumber Database: Semantic Scholar
DOI: 10.1038/nature13316
Akses: Open Access ✓