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Formale Metadaten

Titel
Evolution of a Void
Alternativer Titel
Entstehung massearmer kosmischer Strukturen
Autor
Mitwirkende
Lizenz
Keine Open-Access-Lizenz:
Es gilt deutsches Urheberrecht. Der Film darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
Identifikatoren
IWF-SignaturC 12601
Herausgeber
Erscheinungsjahr
Sprache
Andere Version
Produzent
Produktionsjahr2004

Technische Metadaten

IWF-FilmdatenVideo-Clip ; F, 1 min 17 sec

Inhaltliche Metadaten

Fachgebiet
Genre
Abstract
The computer simulation shows the evolution of structure within a void. The simulated volume contains no bright galaxies such as the Milky Way and therefore would observationally appear to be empty. Until today the distribution of matter in these voids has not been measured. Computer simulations have shown that voids also contain small filaments and knots, where objects of the mass of dwarf galaxies or smaller are situated.
Schlagwörter
IWF-Klassifikation
Deutsch
Deutsch
Englisch
Englisch
KalenderjahrUrknallBaryon
Baryon
Urknall
Knoten <Astronomie>ProtuberanzBuntheitRotverschiebungMasse <Physik>KalenderjahrGasdichteSchwache LokalisationZentralsternKristallgitterLichtHimmelsbeobachtung
Schall
Transkript: Englisch(automatisch erzeugt)
Almost homogeneously distributed dark and baryonic matter 50 million years after the Big Bang. The volume is 100,000 times smaller than today. Masses attract each other, first objects are forming.
After 3 billion years, first filamentary structures appear. During the next 10 billion years, matter flows along these filaments to the knots. Time is indicated by the redshift Z on the upper right corner. Up to today, objects have evolved which are 10 times smaller than our Milky Way.
The colors represent the local density of matter. Red indicates low, yellow indicates high values where stars can form. However, the stars are old and sparse, therefore the voids appear empty in astronomy observations. The void has reached a diameter of 65 million light years.