![File:Quasar HE 1104-1805.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Quasar_HE_1104-1805.jpg/600px-Quasar_HE_1104-1805.jpg)
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Summary
DescriptionQuasar HE 1104-1805.jpg |
English: This picture shows a quasar that has been gravitationally lensed by a galaxy in the foreground, which can be seen as a faint shape around the two bright images of the quasar.
Observations of one of the images show variations in colour over time. This is caused by stars within the lens galaxy passing through the path of the light from the quasar, magnifying the light from different parts of the quasar’s accretion disc as they move. This has allowed a team of scientists to reconstruct the colour and temperature profile of the accretion disc with unprecedented precision. The level of detail involved is equivalent to being able to study individual grains of sand on the surface of the Moon while standing on Earth. |
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Source | http://www.spacetelescope.org/images/heic1116a/ | |||
Author | NASA, ESA and J.A. Muñoz (University of Valencia) | |||
Permission (Reusing this file) |
![]() ![]() This file is licensed under the Creative Commons Attribution 4.0 International license. Attribution: NASA, ESA and J.A. Muñoz (University of Valencia)
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Other versions | Derivative works of this file: Quasar barnstar 1.png |
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4 November 2011
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:37, 4 November 2011 | ![]() | 1,024 × 1,024 (157 KB) | Jmencisom |
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Credit/Provider | NASA, ESA and J.A. Muñoz (University of Valencia) |
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Source | ESA/Hubble |
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Date and time of data generation | 10:00, 4 November 2011 |
Software used | Adobe Photoshop CS3 Windows |
Copyright status | Copyright status not set |
Unique ID of original document | xmp.did:F44FDB86CE03E1118452989815D5B33E |
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Contact information |
http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
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