If Sagittarius A* was a person, it would consume a single grain of rice every million years. Also, only some of this material falls into the black hole. The electrons are 100 times cooler than the ions in the plasma, and the disk rotates in the same direction the black hole spins. This diffuse glowing disk is made up of super-heated gas, or plasma, and charged particles. The gas falling into the black hole forms a disk that, from Earth, appears to be face-on rather than from the edge. He coordinated the fifth paper, which focuses on creating black hole simulations and turning them into synthetic images that can be compared with real observations to teach us something new about the black hole.Īs a result of this process, EHT scientists determined that Sagittarius A* is likely spinning and has a magnetic field slightly stronger than a refrigerator magnet, which is enough to push away nearby gas. Chan serves as the secretary of the EHT Science Council and is a senior investigator for the international Black Hole PIRE Project, which works to develop the infrastructure to usher astronomical projects like EHT into the era of big data science.Ĭhan is also a leader of the EHT collaboration's theoretical modeling and interpretation efforts for Sagittarius A*, the subject of the latest photograph and a round of scientific papers published by the EHT Collaboration in Astrophysical Journal Letters. To really understand the object we're observing, we had to compare it to simulations," said Chi-Kwan "CK" Chan, a University of Arizona associate research professor in the College of Science's Steward Observatory. "Snapping an image is just the beginning. The latest image, released Thursday, shows the black hole at the center of our own Milky Way galaxy, called Sagittarius A*.īut what happens after these images are captured? ![]() The first image, of the black hole at the center of the Messier 87 galaxy, was released in 2019. After mobilizing more than 300 scientists and engineers to establish a network of synchronized telescopes that form an Earth-sized virtual telescope, the international Event Horizon Telescope Collaboration snapped the first-ever images of supermassive black holes.
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