File:Eso1516a.jpg
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editDescriptionEso1516a.jpg |
English: Star formation in what are now "dead" galaxies sputtered out billions of years ago. ESO’s Very Large Telescope and the NASA/ESA Hubble Space Telescope have revealed that three billion years after the Big Bang, these galaxies still made stars on their outskirts, but no longer in their interiors. The quenching of star formation seems to have started in the cores of the galaxies and then spread to the outer parts.
This diagram illustrates this process. Galaxies in the early Universe appear at the left. The blue regions are where star formation is in progress and the red regions are the "dead" regions where only older redder stars remain and there are no more young blue stars being formed. The resulting giant spheroidal galaxies in the modern Universe appear on the right. |
Date | |
Source | ESO website |
Author | ESO |
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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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current | 05:52, 17 April 2015 | 4,000 × 2,400 (4.3 MB) | Artem Korzhimanov (talk | contribs) | User created page with UploadWizard |
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Credit/Provider | ESO |
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Source | European Southern Observatory |
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Date and time of data generation | 20:00, 16 April 2015 |
Software used | Adobe Photoshop CC 2014 (Windows) |
Unique ID of original document | xmp.did:9fbc9428-7003-9849-ae40-fb9a11076ad5 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |