ALMA discovers massive rotating disk in early universe

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ALMA radio image of the Wolfe Disk, seen when the universe was only ten percent of its current age.

In most galaxy formation scenarios, galaxies only start to show a well-formed disk around 6 billion years after the Big Bang. The fact that the astronomers found such a disk galaxy when the universe was only ten percent of its current age, indicates that other growth processes must have dominated.


"We think the Wolfe Disk has grown primarily through the steady accretion of cold gas," said J. Xavier Prochaska, of the University of California, Santa Cruz and coauthor of the paper. "Still, one of the questions that remains is how to assemble such a large gas mass while maintaining a relatively stable, rotating disk."


Not the time to die right now https://phys.org/news/2020-05-alma-...YRyMp5kSMhD2OgC1EhpOAXT5za7xuHniPGCS0_GqM2dCM
 

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