File:The Spectrum of the unusual quasar HE 2347-4342 (eso9720b).jpg
Original file (1,064 × 697 pixels, file size: 98 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionThe Spectrum of the unusual quasar HE 2347-4342 (eso9720b).jpg |
English: This diagram shows the spectrum of the newly discovered, unusually bright quasar HE 2347-4342 . It is a composite of data obtained with the FOS instrument at the Hubble Space Telescope (ultraviolet part - to the left) and the EFOSC instrument at the ESO/MPI 2.2 m telescope at La Silla (visual part - to the right). The abscissa unit is Angstrom (1 A = 10 -10 m); the ordinate is relative intensity (brightness). The strong Lyman-alpha hydrogen line in this remote object (redshift z = 2.885) is seen at 4700 A. Note also the intensity increase towards the ultraviolet part at the left in the diagram which is due to the unusually `clear view' in this direction. The He + area near 1180 A is just outside the left border. The feature near 2800 A is an artifact. The two `holes' correspond to spectral regions in which the data are too noisy (left) or missing (centre). |
||
Date | 1 August 1997 (upload date) | ||
Source |
|
||
Author | ESO | ||
Other versions |
|
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 | 00:53, 25 June 2024 | 1,064 × 697 (98 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.eso.org/public/archives/images/large/eso9720b.jpg via Commons:Spacemedia |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
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.
Image title |
|
---|---|
Credit/Provider | ESO |
Source | European Southern Observatory |
Short title |
|
Usage terms |
|
Date and time of data generation | 00:00, 1 August 1997 |
Keywords |
|
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |