Dartmouth astrophysicists and their colleagues have not only proven that a supermassive black hole exists in a place where it isn’t supposed to be, but in doing so have opened a new door to what things were like in the early universe.
Henize 2-10 is a small irregular galaxy that is not too far away in astronomical terms — 30 million light-years. “This is a dwarf starburst galaxy — a small galaxy with regions of very rapid star formation — about 10 percent of the size of our own Milky Way,” says co-author Ryan Hickox, an assistant professor in Dartmouth’s Department of Physics and Astronomy. “If you look at it, it’s a blob, but it surprisingly harbors a central black hole.”A Hubble Space Telescope image shows the Henize 2-10 galaxy, with a hidden supermassive black hole at its center.
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