can push the gas,
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, they report,
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, is radiation from a superheated disk of debris swirling around a black hole roughly 100,000 times as massive as the sun.
If CR7 does host a black hole, it would be the first evidence of one forming out of clouds that haven’t given birth to stars yet. Astronomers struggle to explain how some supermassive black holes could form in about 1 billion years out of just smaller black holes merging together. “There’s just not enough time to do that,” Smith says. A direct collapse black hole,
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, however, creates a massive seed all in one go, jump-starting the growth of a behemoth that will eventually weigh as much as several billion suns.
“This is definitely a good step forward,
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,” says David Sobral, an astrophysicist at Lancaster University in England who discovered CR7 in 2015. But it’s too early to say whether a black hole or a group of stars is powering CR7, he says. “I’ve tried to stay a bit away from it and argue that what we need is new observations instead of taking sides.”
With the data that are available, it’s hard to distinguish between stars or a black hole,
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, says Sobral. That’s why he and colleagues have reserved time with the Hubble Space Telescope in January and are awaiting new data from the Atacama Large Millimeter/submillimeter Array in Chile. Data from both observatories will help researchers look for traces of heavy elements in CR7. If these more sensitive data still show no sign of atoms such as carbon, says Sobral,
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, then CR7 probably hosts a nest of first-generation stars.? A black hole,
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, on the other hand,
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, probably

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