Black Hole Photo May Also Have Captured Light From Around the Universe
“When you point a telescope at a black hole, it turns out you don’t just see the swirling sizzling doughnut of doom formed by matter falling in,” studies the New York Times. “You can also see the whole universe.”
Light from an infinite array of distant stars and galaxies can wrap round the black gap like ribbons round a maypole, many times earlier than coming again to your eye, or your telescope. “The image of a black hole actually contains a nested series of rings,” mentioned Michael Johnson of the Harvard-Smithsonian Center for Astrophysics, not in contrast to the rings that kind round your bathtub drain.
Dr. Johnson was lead writer of a examine, describing the proposed methodology that may enable our telescopes to pry extra secrets and techniques from the maw of any black gap, that was printed in the March 18 version of the journal Science Advances. He and different authors of the paper are additionally members of the crew working the Event Horizon Telescope, a globe-girding community of radio telescopes that made that first picture of a black gap. Their telescope noticed these rings, but it surely did not have sufficient decision to tell apart them, so that they have been blurred right into a single function…. Andrew Strominger, a Harvard theorist and co-author of the paper, mentioned, “Understanding the intricate details of this historic experimental observation has forced theorists like myself to think about black holes in a new way…”
As Peter Galison of Harvard, one other E.H.T. collaborator mentioned, “As we peer into these rings, we are looking at light from all over the visible universe, we are seeing farther and farther into the past, a movie, so to speak, of the history of the visible universe.”