File:Sag A*.jpg
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原始文件 (4,076 × 4,076像素,文件大小:558 KB,MIME类型:image/jpeg)
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[编辑]描述Sag A*.jpg |
English: Sagittarius A* Imaged by the Event Horizon Telescope |
日期 | |
来源 | Astronomers reveal first image of the black hole at the heart of our galaxy (Image link) |
作者 | EHT Collaboration |
其他版本 |
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[编辑]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. | |
管理员或受信用户Thibaut120094确认本图片在2022年5月13日可在下列站点找到并符合所选许可证:
https://eventhorizontelescope.org/blog/astronomers-reveal-first-image-black-hole-heart-our-galaxy |
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日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
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当前 | 2022年5月13日 (五) 13:07 | 4,076 × 4,076(558 KB) | Thibaut120094(留言 | 贡献) | JPEG file from https://cdn.eso.org/images/large/eso2208-eht-mwa.jpg | |
2022年5月12日 (四) 13:40 | 4,076 × 4,076(558 KB) | The Unsinkable Molly Brown(留言 | 贡献) | I've uploaded a full-resolution version of the square-cropped image. | ||
2022年5月12日 (四) 13:27 | 2,048 × 2,048(94 KB) | Thedubya(留言 | 贡献) | Uploaded a work by Event Horizon Telescope from https://pbs.twimg.com/media/FSjyxnJWUAIUhKV.jpg with UploadWizard |
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提供者 | EHT Collaboration |
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来源 | European Southern Observatory |
简短标题 |
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数据生成日期时间 | 2022年5月12日 (四) 15:07 |
JPEG文件备注 | 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. |
关键词 | Milky Way Galactic Centre |
联系信息 |
Karl-Schwarzschild-Strasse 2 Garching bei München, None, D-85748 Germany |
IIM版本 | 4 |