A Monster Black Hole has Been Found Right in our Backyard (Astronomically Speaking) universetoday storybywill
Artist’s impression of the Giant Magellan Telescope using its laser range-finders. Credit: Giant Magellan Telescope – GMTO Corporation
To find the black hole, Dr. Chakrabarti and her team analyzed data from the Gaia DR3, which included information on nearly 200,000 binary stars observed by the European Space Agency’s . The team followed up on sources of interest by consulting spectrographic measurements from other telescopes, like the Lick Observatory’s Automated Planet Finder, the Giant Magellan Telescope , and the W.M. Keck Observatory in Hawaii.
Interacting black holes are typically easier to observe in visible light because they are in tighter orbits and pull material from their stellar companions. This material form a torus-shaped accretion disk around the black hole that is accelerated to relativistic velocities , becoming highly energetic and emitting X-ray radiation. Because noninteracting black holes have wider orbits and do not form these disks, their presence has to be inferred from analyzing the motions of the visible star.
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