Ficheiro:Hubble pushed beyond limits to spot clumps of new stars in distant galaxy.jpg
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Resumo
DescriciónHubble pushed beyond limits to spot clumps of new stars in distant galaxy.jpg |
English: In this Hubble image of a distant galaxy cluster, a spotty blue arc stands out dramatically against a background of red galaxies. That arc is actually three separate images of the same background galaxy. The background galaxy has been gravitationally lensed, its light magnified and distorted by the intervening galaxy cluster.
By using the magnifying power of this natural cosmic lens, astronomers have been able to study the background galaxy in intimate detail. Through sophisticated computer processing, they determined how the galaxy’s image has been warped by gravity. The image at right shows how the galaxy would look to Hubble without distortions. It reveals a disc galaxy containing clumps of star formation that each span about 200 to 300 light-years. This contradicts theories suggesting that star-forming regions in the distant, early Universe were much larger, 3000 light-years or more in size. |
Data | |
Orixe | https://www.spacetelescope.org/images/opo1727a/ |
Autoría | NASA, ESA, and T. Johnson (University of Michigan) |
Licenza
ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
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Créditos/Provedor | NASA, ESA, and T. Johnson (University of Michigan) |
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Orixe | ESA/Hubble |
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Data e hora de xeración do ficheiro | 10 de xullo de 2017 ás 12:00 |
Comentario do ficheiro JPEG | When the universe was young, stars formed at a much higher rate than they do today. By peering across billions of light-years of space, Hubble can study this early era. But at such distances, galaxies shrink to smudges that hide key details. Astronomers have teased out those details in one distant galaxy by combining Hubble’s sharp vision with the natural magnifying power of a gravitational lens. The result is an image 10 times better than what Hubble could achieve on its own, showing dense clusters of brilliant, young stars. |
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Información de contacto |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
Versión IIM | 4 |