Usòrò:Hubble Showcases Hamilton’s Object.jpg
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NkówáHubble Showcases Hamilton’s Object.jpg |
English: This NASA/ESA Hubble Space Telescope snapshot shows three magnified images of a distant galaxy embedded in a cluster of galaxies. These images are produced by a trick of nature called gravitational lensing. The galaxy cluster's immense gravity magnifies and distorts the light from the distant galaxy behind it, creating the multiple images. The galaxy cluster, catalogued as SDSS J223010.47-081017.8, is 7 billion light-years from Earth. Hubble has observed many gravitationally lensed galaxies. However, the images spotted in this Hubble snapshot are unique. Two of the magnified images, shown in the pull-out at bottom right, are exact copies of each other. The two bright ovals are the cores of the galaxy. This rare phenomenon occurs because the background galaxy straddles a ripple in the fabric of space. This “ripple” is an area of greatest magnification, caused by the gravity of dense amounts of dark matter, the unseen glue that makes up most of the universe's mass. As light from the faraway galaxy passes through the cluster along this ripple, two mirror images are produced, along with a third imagethat can be seen off to the side. A close-up of the third image is shown in the pull-out at top right. This image most closely resembles the remote galaxy, which is located more than 11 billion light-years away. Based on a reconstruction of this image, the researchers determined that the distant galaxy appears to an edge-on, barred spiral with ongoing, clumpy star formation. The mirror images are named “Hamilton’s Object" for the astronomer who discovered them. |
Ǹgụ́ụ̀bọ̀chị̀ | |
Mkpọlọ́gwụ̀ | https://esahubble.org/images/opo2146a/ |
Odé ákwụ́kwọ́ | NASA, ESA, Richard E. Griffiths (UH Manoa), Jenny Wagner (ZAH). Joseph DePasquale (STScI) |
Nkwényé
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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This file is licensed under the Creative Commons Attribution 4.0 International license.
Í-kpó-áhà: ESA/Hubble
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7 Ọktoba 2021
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Èhì/Ogè | Mbọ-aka | Ógólógó na asaá | Òjìème | Nkwute | |
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dị ùgbu â | 14:54, 12 Ọktoba 2021 | 1,280 × 1,024 (216 KB) | Pandreve | Uploaded a work by NASA, ESA, Richard E. Griffiths (UH Manoa), Jenny Wagner (ZAH). Joseph DePasquale (STScI) from https://esahubble.org/images/opo2146a/ with UploadWizard |
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Odé ákwụ́kwọ́ | Space Telescope Science Institute Office of Public Outreach |
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Credit/Provider | NASA, ESA, Richard E. Griffiths (UH Manoa), Jenny Wagner (ZAH). Joseph DePasquale (STScI) |
Source | ESA/Hubble |
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Ụbọchi na oge emepụtara ngwa mmụta | 17:00, 7 Ọktoba 2021 |
JPEG file comment | Gazing into the universe is like looking into a funhouse mirror. That's because gravity warps the fabric of space, creating optical illusions. Many of these optical illusions appear when a distant galaxy's light is magnified, stretched, and brightened as it passes through a massive galaxy or galaxy cluster in front of it. This phenomenon, called gravitational lensing, produces multiple, stretched, and brightened images of the background galaxy. This phenomenon allows astronomers to study galaxies so distant they cannot be seen other than by the effects of gravitational lensing. The challenge is in trying to reconstruct the distant galaxies from the odd shapes produced by lensing. Astronomers using the Hubble Space Telescope stumbled upon one such odd shape while analyzing quasars, the blazing cores of active galaxies. They spotted two bright, linear objects that appeared to be mirror images of each other. Another oddball object was nearby. The features so befuddled the astronomers that it took them several years to unravel the mystery. With the help of two gravitational-lensing experts, the researchers determined that the three objects were the distorted images of a faraway, undiscovered galaxy. But the biggest surprise was that the linear objects were exact copies of each other, a rare occurrence caused by the precise alignment of the background galaxy and the foreground lensing cluster. |
Ndiriusòrò ejìème | Adobe Photoshop 22.4 (Macintosh) |
Failụ mgbanwe ụbọchi na oge | 16:46, 13 Septemba 2021 |
Date and time of digitizing | 11:50, 11 Ọgọọst 2021 |
Date metadata was last modified | 13:22, 13 Septemba 2021 |
Unique ID of original document | xmp.did:d845cfd7-af64-4114-a2a4-b3e34695f5a3 |
Keywords | SDSS J223010.47-081017.8 |
Contact information | outreach@stsci.edu
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States |
IIM version | 4 |