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3700 San Martin Drive
21218
MD
outreach@stsci.edu
410-338-4444
https://www.stsci.edu/
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https://www.stsci.edu/cgi-bin/get-proposal-info?id=2733&observatory=JWST
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https://webbtelescope.org/contents/news-releases/2022/news-2022-033
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Observation
Space Telescope Science Institute Office of Public Outreach
NASA’s Webb Telescope has revealed the cloak of dust around the second star, shown at left in red, at the center of the Southern Ring Nebula for the first time. It is a hot, dense white dwarf star.
As it transformed into a white dwarf, the star periodically ejected mass – the shells of material you see here. As if on repeat, it contracted, heated up – and then, unable to push out more material, pulsated.
At this stage, it should have shed its last layers. So why is the red star still cloaked in dust? Was material transferred from its companion? Researchers will begin to pursue answers soon.
The bluer star at right in this image has also shaped the scene. It helps stir up the ejected material. The disk around the stars is also wobbling, shooting out spirals of gas and dust over long periods of time. This scene is like witnessing a rotating sprinkler that’s finished shooting out material in all directions over thousands of years.
Webb captured this scene in mid-infrared light – which can only be observed from space. Mid-infrared light helps researchers detect objects enshrouded in dust, like the red star.
This Mid-Infrared Instrument (MIRI) image also offers an incredible amount of detail, including a cache of distant galaxies in the background. Most of the multi-colored points of light are galaxies, not stars. Tiny triangles mark the circular edges of stars, including a blue one within the nebula’s red bottom-most edges, while galaxies look like misshapen circles, straight lines, and spirals.
For a full array of Webb’s first images and spectra, including downloadable files, please visit: https://webbtelescope.org/news/first-images
MIRI was contributed by ESA and NASA, with the instrument designed and built by a consortium of nationally funded European Institutes (The MIRI European Consortium) in partnership with JPL and the University of Arizona.
image/png
Public
NGC 3132
Southern Ring Nebula
Eight-Burst Nebula
Southern Ring Nebula (MIRI Image)
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