'Wolfe Disk': Huge rotating disk galaxy in distant universe baffles astronomers

Astromers have discovered a huge rotating disk galaxy in distant universe. According to researchers at Atacama Large Millimeter/submillimeter Array (ALMA) Observatory in Chile, massive rotating disk galaxy was formed at least 12.5 billion years ago when our universe was only a tenth of its current . However, new discovery is challenging how astromers perceive concept of galaxy formation.

newly spotted disk has been nicknamed as ‘Wolfe Disk’ after late astromer Arthur M Wolfe and is called Galaxy DLA0817g. According to published research, ‘most distant rotating disk’ is spinning at 272kms per second and is similar to Milky Way in its shape.

research said, “ discovery of Wolfe Disk provides a challenge for many galaxy formation simulations, which predict that massive galaxies at this point in evolution of cosmos grew through many mergers of smaller galaxies and hot clumps of gas.”

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‘Unambiguous’ evidence

researchers have also observed mass of Wolfe Disk is 70 billion times of our sun. Researchers have believed that stable galaxies like Milky Way with structured disk were formed six billion years after Big Bang. However, new observation is an “unambiguous” proof that galaxies were formed 1.5 billion years after phemen, according to le author Marcel Neeleman of Max Planck Institute for Astromy in Heidelberg, Germany.

“While previous studies hinted at existence of se early rotating gas-rich disk galaxies, thanks to ALMA we w have unambiguous evidence that y occur as early as 1.5 billion years after Big Bang,” said le author Marcel Neeleman.

“Most galaxies that we find early in Universe look like train wrecks because y underwent consistent and often ‘violent’ merging,” he explained. “se hot mergers make it difficult to form well-ordered, cold rotating disks like we observe in our present Universe.” 

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Im Source: almaobservatory.org