File:Intergalactic Absorbtion Clouds (1992-04-54).tif

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Original file ‎(2,700 × 2,118 pixels, file size: 13.09 MB, MIME type: image/tiff)

Captions

Captions

[Top Diagram] The transparent block schematically represents a column of space between a distant quasar and a telescope on earth.

Summary[edit]

Description
English: [Top Diagram] The transparent block schematically represents a column of space between a distant quasar and a telescope on earth. As the quasar's light travels across space, invisible, intervening clouds of hydrogen gas absorb certain frequencies of the light. This creates complex "thickets" of absorption features, schematically shown in the spectrum below the box. Ground-based observations have shown that the number of these clouds rapidly rises as one looks back in time.
Date 13 January 1992 (upload date)
Source Intergalactic Absorbtion Clouds
Author STScI Astronomy Visualization Laboratory
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    JPG version

Licensing[edit]

Public domain This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.

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current16:35, 1 November 2023Thumbnail for version as of 16:35, 1 November 20232,700 × 2,118 (13.09 MB)OptimusPrimeBot (talk | contribs)#Spacemedia - Upload of https://stsci-opo.org/STScI-01EVTB76YD9GAY4VJ4CXP05H8S.tif via Commons:Spacemedia

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