The findings reveal more about how light warps around black holes.
NASA/JPL-CaltechDetecting strong X-ray flares beaming from the center of a black hole is nothing new. But detecting light signals fromone is a different story. That’s because the force of gravity in a black hole is so severe that nothing that goes in can come out. No scientist has managed to find light from beyond—until now.
In contrast to what their name implies, supermassive black holes can be one of the brightest sources of continuous light in the universe. Their extreme gravitational pull brings in all kinds of material that manifests as a bright ring, or corona, around the so-called event. Little is known about supermassive black hole coronas, so scientists turned to black hole I Zwicky 1, which lies 100 million light-years from Earth, to investigate the beams shooting out.
“Although we have seen the signature of x-ray echoes before, until now it has not been possible to separate out the echo that comes from behind the black hole and gets bent around into our line of sight,” Edward Cackett, an astronomer at Wayne State University who was not involved with the study, told. “It will allow for better mapping of how things fall into black holes and how black holes bend the space-time around them.
Black holes are one of the universe’s biggest mysteries, literally and figuratively. Getting a glimpse of the far side of a black hole is a monumental step for astrophysics, and leads scientists one step closer to unlocking their mysteries, like how they grow, how they take in and release energy, and how they help galaxies form around them.
“We are learning how to use these echoes…to reconstruct an image of the extreme environment just outside the black hole,” Dan Wilkins, an astrophysicist at Stanford University and the lead author of the study, told
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