Still-forming gas giants around a very young star may have a chilling effect on planetary formation. Did it happen in our Solar System.
to probe the obscuring disk. The formation of planets is one of the foundational aspects of astronomy and has long been hidden from view and only theorized about. Scientists at RIKEN are bringing some of the processes into view.
.” It’s published in The Astrophysical Journal, and the lead author is Satoshi Ohashi, a researcher at RIKEN. In the inner region of the young solar system, close to the star, the temperature is ~193 degrees Celsius, which is warm in astronomical terms. When the team measured the temperature further out, on the far side of the clumps, the temperature was significantly lower at about –263 degrees Celsius. That’s very cold, only 10 degrees aboveThis image from the study shows the three clumps in the disk, labelled N, C, and S.
The observed clumps and the drop in temperatures aren’t the only indications that planets are forming. Afound different orbital planes between the inner and outer parts of the disk. The outer parts are misaligned with the central star’s equatorial plane. What causes the misalignment? This figure from the study shows the spiral arm model the researchers created to explain the clumps and a simulated edge-on view of it. Image Credit: Ohashi et al. 2022.
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