File:Dark galaxies spotted for the first time.jpg
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search

Size of this preview: 564 × 599 pixels. Other resolutions: 226 × 240 pixels | 452 × 480 pixels | 723 × 768 pixels | 964 × 1,024 pixels | 1,600 × 1,700 pixels.
Original file (1,600 × 1,700 pixels, file size: 1.17 MB, MIME type: image/jpeg)
File information
Structured data
Captions
Captions
Add a one-line explanation of what this file represents
Summary
[edit]DescriptionDark galaxies spotted for the first time.jpg |
English: This deep image shows the region of the sky around the quasar HE 0109-3518. The quasar is near the centre of the image. The energetic radiation of the quasar makes dark galaxies glow, helping astronomers to understand the obscure early stages of galaxy formation. Dark galaxies are essentially devoid of stars, therefore they don’t emit any light that telescopes can catch. This makes them virtually impossible to observe unless they are illuminated by an external light source like a background quasar.
This image combines observations from the Very Large Telescope, tuned to detect the fluorescent emissions produced by the quasar illuminating the dark galaxies, with colour data from the Digitized Sky Survey 2. |
Date | |
Source | http://www.eso.org/public/images/eso1228a/ |
Author | ESO, Digitized Sky Survey 2 and S. Cantalupo (UCSC) |
Licensing
[edit]![]() |
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.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 13:53, 21 July 2013 | ![]() | 1,600 × 1,700 (1.17 MB) | Stas1995 (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
- File:Dark galaxies spotted for the first time (7561228504).jpg (file redirect)
File usage on other wikis
The following other wikis use this file:
- Usage on ca.wikipedia.org
- Usage on fr.wikipedia.org
- Usage on fr.wikinews.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Credit/Provider | ESO, Digitized Sky Survey 2 and S. Cantalupo (UCSC) |
---|---|
Source | European Southern Observatory |
Short title |
|
Image title |
|
Usage terms |
|
Date and time of data generation | 12:00, 11 July 2012 |
Keywords | HE 0109-3518 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |