A study at Ohio State University has uncovered more evidence that black holes form before the galaxies that contain them.
Artists rendering of a black hole in a globular cluster. Photo courtesy NASA and G. Bacon, Space Telescope Science Institute.
The finding could help resolve a long-standing debate, said Marianne Vestergaard, a postdoctoral fellow in astronomy at Ohio State.
Vestergaard came to this conclusion when she studied a collection of very energetic, active galaxies known as quasars as they appeared some 12 billion years ago, when the universe was only one billion years old. While the quasars were obviously young -- they contained large stellar nurseries in which new stars were forming -- each also contained a very massive, fully formed black hole.
Marianne Vestergaard | EurekAlert!
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