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.
%0 Journal Article
%1 Vogelsberger2014Properties
%A Vogelsberger, M.
%A Genel, S.
%A Springel, V.
%A Torrey, P.
%A Sijacki, D.
%A Xu, D.
%A Snyder, G.
%A Bird, S.
%A Nelson, D.
%A Hernquist, L.
%D 2014
%I Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.
%J Nature
%K astro
%N 7499
%P 177--182
%R 10.1038/nature13316
%T Properties of galaxies reproduced by a hydrodynamic simulation
%U http://dx.doi.org/10.1038/nature13316
%V 509
%X 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.
@article{Vogelsberger2014Properties,
abstract = {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.},
added-at = {2018-06-18T21:23:34.000+0200},
archiveprefix = {arXiv},
author = {Vogelsberger, M. and Genel, S. and Springel, V. and Torrey, P. and Sijacki, D. and Xu, D. and Snyder, G. and Bird, S. and Nelson, D. and Hernquist, L.},
biburl = {https://www.bibsonomy.org/bibtex/2c60c1d6882a19cb5eeecfea7a1b6f825/pbett},
citeulike-article-id = {13161782},
citeulike-attachment-1 = {nature13316.pdf; /pdf/user/pbett/article/13161782/963985/nature13316.pdf; edfc2355ce4181c6f4f642f39be82796393a4a36},
citeulike-linkout-0 = {http://arxiv.org/abs/1405.1418},
citeulike-linkout-1 = {http://arxiv.org/pdf/1405.1418},
citeulike-linkout-2 = {http://dx.doi.org/10.1038/nature13316},
citeulike-linkout-3 = {http://dx.doi.org/10.1038/nature13316},
comment = {(private-note)The Ilustris simulation, using the moving-mesh AREPO code.},
day = 6,
doi = {10.1038/nature13316},
eprint = {1405.1418},
file = {nature13316.pdf},
interhash = {693fd899a43c2d4060e8dd1548085cf3},
intrahash = {c60c1d6882a19cb5eeecfea7a1b6f825},
issn = {0028-0836},
journal = {Nature},
keywords = {astro},
month = may,
number = 7499,
pages = {177--182},
posted-at = {2014-05-08 15:48:48},
priority = {2},
publisher = {Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.},
timestamp = {2018-06-22T18:34:20.000+0200},
title = {Properties of galaxies reproduced by a hydrodynamic simulation},
url = {http://dx.doi.org/10.1038/nature13316},
volume = 509,
year = 2014
}