Figure 1: Circumplanetary-disk discovery. | Nature

Figure 1: Circumplanetary-disk discovery.

From: Growing planet brought to light

Figure 1

The young star LkCa 15 is surrounded by a disk of dust and gas. Sallum et al.1 report that a young planet (LkCa 15 b) is growing in a gap in that circumstellar disk, and that two other potential young planets (LkCa 15 c and d) also reside within the gap. Disks of dust and gas also form around young planets (inset), providing material for them to grow continuously. When material from a circumplanetary disk follows the magnetic fields of young planets (blue curves) to be accreted onto those planets, it produces light known as Hα photons. The authors report that LkCa 15 b is an Hα emitter. This graphic is based on supercomputer simulations of the gas distribution in the LkCa 15 system; the central star and planets are not shown to scale. (Graphic modified from images provided by Z. Zhu.)

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