This strongly suggested that this object - known as Sagittarius A* (Sgr A*, pronounced "sadge-ay-star") - is a black hole, and today’s image provides the first direct visual evidence of it.Īlthough we cannot see the black hole itself, because it is completely dark, glowing gas around it reveals a telltale signature: a dark central region (called a “shadow”) surrounded by a bright ring-like structure. Scientists had previously seen stars orbiting around something invisible, compact, and very massive at the centre of the Milky Way. The image is a long-anticipated look at the massive object that sits at the very centre of our galaxy. 1Joined in 1990 by the Instituto Geográfico Nacional (IGN, Spain).The results are published in The Astrophysical Journal Letters. , played a key role in this result via its 30-meter telescope, located near Granada, the most sensitive single antenna of the EHT network. ![]() The Institute for Millimeter Radio Astronomy (IRAM), founded in 1979 by the CNRS and the Max-Planck-Gesellschaft (MPG, Germany) 1 The image was produced by a global research team called the Event Horizon Telescope (EHT) Collaboration, using observations from a worldwide network of radio telescopes. ![]() This result provides overwhelming evidence that the object is indeed a black hole and yields valuable clues about the workings of such giants, which are thought to reside at the centre of most galaxies.
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