Meteorite-Mineralien-Gold-Forum.de
verwandte Themen => kleine Astro-Ecke => Thema gestartet von: karmaka am Mai 08, 2014, 01:12:00 Vormittag
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Illustris - eine Simulation des Universums
Ein 106.5-Megaparsec-Modell des Universums zur Simulation der kosmischen Evolution der letzten 13,8 Milliarden Jahre
VIDEO-LINK (http://www.youtube.com/v/SY0bKE10ZDM?autohide=1&version=2)
LINK (http://www.nature.com/news/model-universe-recreates-evolution-of-the-cosmos-1.15178)
Interview mit Mark Vogelsberger über Illustris
AUDIO-LINK (http://www.nature.com/nature/journal/v509/n7499/audio/nature13316-p1.mp3)
Properties of galaxies reproduced by a hydrodynamic simulation
M. Vogelsberger, S. Genel, V. Springel, P. Torrey, D. Sijacki,
D. Xu, G. Snyder, S. Bird, D. Nelson & L. Hernquist
Nature 509, 177–182 (08 May 2014)
doi:10.1038/nature13316
LINK (http://www.nature.com/nature/journal/v509/n7499/full/nature13316.html)
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.
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Danke lieber Martin,
wunderbares Video !
Das tut mit Bettlägrigen (Kellerstiegensturz) echt gut !
LG,
Michael
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blöde Tastatur - soll heißen mir Bettlägrigen !!!
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Das tut mit Bettlägrigen ... echt gut !
Der war gut :laughing:
Ich wünsche Dir gute Besserung :traurig:
:hut: Jörg
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danke lieber Jörg,
kann ich dzt. gut gebrauchen !
LG,
Michael