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DescriptionQuasars in interacting galaxies.jpg |
English: [Top Row]
This is a selection of photos from a Hubble Space Telescope survey of 11 ultra-bright quasars that existed at the peak of the universe's star-formation era, which was 12 billion years ago. The quasars (powered by supermassive black holes) are so compact and bright they make a diffraction-spike pattern in the telescope's optics - an optical artifact typically only produced by bright nearby stars. Despite their brightness, the quasars are actually dimmed by dusty gas around them. The infrared capability of Hubble's Wide Field Camera 3 was able to probe deeply into the material around the quasars. [Bottom Row] When the glare of the quasar is subtracted, researchers see evidence for collisions between galaxies. The collisions and mergers gave birth to the quasars by fueling the supermassive black hole at the core of the galaxies. The new images capture the dust-clearing transitional phase in the merger-driven quasar birth. These observations show that the brightest quasars in the universe live in merging galaxies. |
Date | |
Source | http://www.spacetelescope.org/images/opo1520a/ |
Author | NASA, ESA, and E. Glikman (Middlebury College, Vermont) |
Other versions | File:Teen-quasars.jpg |
ESA/Hubble images, videos and web texts are released by the
ESA under the
Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the
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current | 09:06, 31 December 2019 | 3,000 × 2,400 (1.64 MB) | BevinKacon | actual size from source | |
09:18, 19 June 2015 | 1,280 × 1,024 (249 KB) | Jmencisom | User created page with UploadWizard |
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Image title |
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Credit/Provider | NASA, ESA, and E. Glikman (Middlebury College, Vermont) |
Source | ESA/Hubble |
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Usage terms |
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Date and time of data generation | 09:46, 19 June 2015 |
Software used | Adobe Photoshop CS4 Macintosh |
Unique ID of original document | xmp.did:8ABEF432682268118083C22B6BB64C57 |
Keywords |
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Contact information |
http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |