A Circumplanetary Disk Candidate Spotted with ALMA

August 10, 2022

This image of the AS 209 protoplanetary disk at a wavelength of 1.25 millimeters shows the thermal emission from the dust. The white line at the lower right is a 10-au scale bar and the white circle at the lower left is the beam size for the observations.

Astronomers may have found a gaseous disk around a planet orbiting the young star AS 209. This is one of just four circumplanetary disk candidates discovered so far, and these observations enable the first mass estimate of a circumplanetary disk’s gas.

https://aasnova.org/2022/08/10/a-circumplanetary-disk-candidate-spotted-...

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