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Summary
DescriptionSag A*.jpg |
English: Sagittarius A* Imaged by the Event Horizon Telescope |
Date | |
Source | Astronomers reveal first image of the black hole at the heart of our galaxy (Image link) |
Author | EHT Collaboration |
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Licensing
This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. | |
This file is licensed under the Creative Commons Attribution 4.0 International license.
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This file, which was originally posted to
https://eventhorizontelescope.org/blog/astronomers-reveal-first-image-black-hole-heart-our-galaxy, was reviewed on 13 May 2022 by reviewer Thibaut120094, who confirmed that it was available there under the stated license on that date.
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Items portrayed in this file
depicts
12 May 2022
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:07, 13 May 2022 | 4,076 × 4,076 (558 KB) | wikimediacommons>Thibaut120094 | JPEG file from https://cdn.eso.org/images/large/eso2208-eht-mwa.jpg |
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Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.Credit/Provider | EHT Collaboration |
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Source | European Southern Observatory |
Short title |
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Image title |
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Usage terms |
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Date and time of data generation | 15:07, 12 May 2022 |
JPEG file comment | This is the first image of Sgr A*, the supermassive black hole at the centre of our galaxy. 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. |
Keywords | Milky Way Galactic Centre |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, None, D-85748 Germany |
IIM version | 4 |
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