Scientists have captured an image of a circumstellar disc, and within it a planet with a moon-forming disc, that looks like the Eye of Sauron from the Lord of the Rings cinematic franchise.
Observations of the system, nearly 400 light years away in the constellation Centaurus, reveal a planet within the circumstellar disc called PDS 70c that has another disc around it, approximately 500 times larger than Saturn's. The exoplanet was first directly imaged using infrared wavelengths in 2019, but a new observation from the Atacama Large Millimeter/submillimeter Array in Chile has revealed the construction in even more detail.The European Southern Observatory has clarified that the ring visible in the"Eye of Sauron" image is not the new planetary disc, which is only visible as a spot of light in the image above.
PDS 70c is one of two Jupiter-like planets orbiting the star, but until recently astronomers were unsure whether the gas giants had discs forming around them or not."Our work presents a clear detection of a disc in which satellites could be forming," explained Dr Myriam Benisty, who led the research published in The Astrophysical Journal Letters.
"Our ALMA observations were obtained at such exquisite resolution that we could clearly identify that the disc is associated with the planet and we are able to constrain its size for the first time," Dr Benisty added.
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