Black Hole Lurks in Invisible Galaxy

Black Hole Lurks in Invisible Galaxy
This figure shows two Hubble images of quasars from a sample of 20 relatively nearby quasars. Quasar HE0450-2958 (left) appears to lack a host galaxy unlike HE1239-2426 (right), which resides inside a normal host galaxy that displays large spiral arms.
(Image: © Frédéric Courbin & Pierre Magain.)

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Called quasars,

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Using images

In 19 of them,

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To explain the

Computer

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Another way to test for the

The discovery is

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