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File:PDS 70 closeup - eso2111a.jpg

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English: This image, taken with the Atacama Large Millimeter/submillimeter Array (ALMA), in which ESO is a partner, shows wide (left) and close-up (right) views of the moon-forming disc surrounding PDS 70c, a young Jupiter-like planet nearly 400 light-years away. The close-up view shows PDS 70c and its circumplanetary disc centre-front, with the larger circumstellar ring-like disc taking up most of the right-hand side of the image. The star PDS 70 is at the centre of the wide-view image on the left. Two planets have been found in the system, PDS 70c and PDS 70b, the latter not being visible in this image. They have carved a cavity in the circumstellar disc as they gobbled up material from the disc itself, growing in size. In this process, PDS 70c acquired its own circumplanetary disc, which contributes to the growth of the planet and where moons can form. This circumplanetary disc is as large as the Sun-Earth distance and has enough mass to form up to three satellites the size of the Moon.
日期 (released)
來源 https://www.almaobservatory.org/en/press-releases/astronomers-make-first-clear-detection-of-a-moon-forming-disc-around-an-exoplanet/; see also https://www.eso.org/public/images/eso2111a/
作者 ALMA (ESO/NAOJ/NRAO)/Benisty et al.

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