File:The orbit of the hot spot around Sagittarius A* (eso2212a).jpg
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[edit]DescriptionThe orbit of the hot spot around Sagittarius A* (eso2212a).jpg |
English: This shows a still image of the supermassive black hole Sagittarius A*, as seen by the Event Horizon Collaboration (EHT), with an artist’s illustration indicating where the modelling of the ALMA data predicts the hot spot to be and its orbit around the black hole. |
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Date | 22 September 2022 (upload date) | ||
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Author | EHT Collaboration, ESO/M. Kornmesser (Acknowledgment: M. Wielgus) | ||
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Licensing
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This file is licensed under the Creative Commons Attribution 4.0 International license.
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current | 11:03, 1 July 2023 | 5,000 × 2,864 (481 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://cdn.eso.org/images/large/eso2212a.jpg via Commons:Spacemedia |
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Credit/Provider | EHT Collaboration, ESO/M. Kornmesser (Acknowledgment: M. Wielgus) |
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Source | European Southern Observatory |
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Date and time of data generation | 14:00, 22 September 2022 |
JPEG file comment | This is the first image of Sgr A*, the supermassive black hole at the centre of our galaxy, with an added black background to fit wider screens. It’s the first direct visual evidence of the presence of this black hole. It was captured by the Event Horizon Telescope (EHT), an array which linked together eight existing radio observatories across the planet to form a single “Earth-sized” virtual telescope. The telescope is named after the event horizon, the boundary of the black hole beyond which no light can escape. Although we cannot see the event horizon itself, because it cannot emit light, glowing gas orbiting around the black hole reveals a telltale signature: a dark central region (called a shadow) surrounded by a bright ring-like structure. The new view captures light bent by the powerful gravity of the black hole, which is four million times more massive than our Sun. The image of the Sgr A* black hole is an average of the different images the EHT Collaboration has extracted from its 2017 observations. In addition to other facilities, the EHT network of radio observatories that made this image possible includes the Atacama Large Millimeter/submillimeter Array (ALMA) and the Atacama Pathfinder EXperiment (APEX) in the Atacama Desert in Chile, co-owned and co-operated by ESO is a partner on behalf of its member states in Europe. |
Software used | Adobe Photoshop 23.5 (Windows) |
File change date and time | 15:18, 8 September 2022 |
Date metadata was last modified | 17:18, 8 September 2022 |
Date and time of digitizing | 17:57, 26 August 2022 |
Unique ID of original document | xmp.did:750e640f-364e-0d49-8443-599ab8f08277 |
Keywords | Sagittarius A* |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, None, D-85748 Germany |
IIM version | 4 |