File:Hubble Snapshot of "Molten Ring" Galaxy Prompts New Research - Flickr - NASA Goddard Photo and Video.png
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[edit]DescriptionHubble Snapshot of "Molten Ring" Galaxy Prompts New Research - Flickr - NASA Goddard Photo and Video.png |
Hubble Space Telescope's glamour shots of the universe are so revealing they nearly always have a discovery behind them. In this image, a remote galaxy is greatly magnified and distorted by the effects of gravitationally warped space. After its public release, astronomers used the picture to measure the galaxy's distance of 9.4 billion light-years. This places the galaxy at the peak epoch of star formation in cosmic evolution. n this particular snapshot, a science discovery followed the release of a Hubble observation of a striking example of a deep-space optical phenomenon dubbed an "Einstein ring." The photo was released in December 2020 as an example of one of the largest, nearly complete Einstein rings ever seen. The extremely high rate of star formation in the brightest and very dusty early galaxies saw stars being born at a rate a thousand times faster than occurs within our own galaxy. This could help explain the rapid build-up of present day giant elliptical galaxies. This object's unusual partial ring-like appearance can be explained by a phenomenon called gravitational lensing, which causes light shining from a faraway galaxy to be warped by the gravity of an object between its source and the observer. This effect was first theorized by Albert Einstein in 1912, and later worked into his theory of general relativity. In this case, the galaxy's light has also been magnified by a factor of 20. This magnification, boosted by mother nature, effectively made Hubble's observing capability equivalent to that of a 48-meter-aperture (157 feet) telescope. The lensing effects also create multiple apparitions around the curved arc of the single background magnified galaxy. In order to derive the physical properties of the galaxy, astronomers had to precisely model the effects of the lensing on the galaxy's image. "Such a model could only be obtained with the Hubble imaging," explained the lead investigator Anastasio Díaz-Sánchez of the Universidad Politécnica de Cartagena in Spain. "In particular, Hubble helped us to identify the four duplicated images and the stellar clumps of the lensed galaxy." Read more about those findings here: go.nasa.gov/2XXCMm5 NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram |
Date | Taken on 23 September 2021, 16:38 |
Source | Hubble Snapshot of "Molten Ring" Galaxy Prompts New Research |
Author | NASA Goddard Space Flight Center from Greenbelt, MD, USA |
Flickr tags InfoField | gal-clus-022058s , pks 0218-387 |
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This image was originally posted to Flickr by NASA Goddard Photo and Video at https://flickr.com/photos/24662369@N07/51508612143. It was reviewed on 26 September 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
26 September 2021
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current | 01:41, 26 September 2021 | 2,000 × 1,164 (2.87 MB) | Red panda bot (talk | contribs) | In Flickr Explore: 2021-09-24 |
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Author | Space Telescope Science Institute Office of Public Outreach |
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Credit/Provider | ESA/Hubble&NASA, S. JhaAcknowledgement: L. Shatz |
Source | STScI |
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Date and time of data generation | 06:00, 14 December 2020 |
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Contact information | outreach@stsci.edu
3700 San Martin Drive Baltimore, MD, 21218 USA |
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Horizontal resolution | 28.34 dpc |
Vertical resolution | 28.34 dpc |
File change date and time | 07:35, 15 September 2021 |